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The determinant
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x, y, z are in AP
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x, y, z are in HP
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x, y, z are in GP
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xy, yz, zx are in AP
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If f(x) =
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If the adjoint of a 3 x 3 matrix P is
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2
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[3]=>
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["ques_text"]=>
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A compound Mp Xq has cubic close packing (ccp) arrangement of X. Its unit cell structure is shown below
The empirical formula of the compound, is
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[1]=>
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string(3) "373"
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MX
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[2]=>
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string(4) "1485"
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string(3) "373"
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M5 X4
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[3]=>
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string(4) "1486"
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string(3) "373"
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M2 X
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["Answer"]=>
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[0]=>
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string(3) "388"
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string(3) "373"
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[4]=>
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string(333) "
A boy sitting on the topmost berth in the compartment of a train which is just going to stop on a railway station, drops an apple aiming at the open hand of his brother sitting vertically below his hands at a distance of about 2 meter. The apple will fall [CPMT 1986]
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[0]=>
array(3) {
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string(4) "1813"
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string(3) "456"
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Precisely on the hand of his brother
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[1]=>
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string(4) "1814"
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string(3) "456"
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Slightly away from the hand of his brother in the direction of motion of the train
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[2]=>
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string(4) "1815"
["question_id"]=>
string(3) "456"
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Slightly away from the hand of his brother in the direction opposite to the direction of motion of the train
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[3]=>
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string(4) "1816"
["question_id"]=>
string(3) "456"
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None of the above
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["Answer"]=>
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[0]=>
array(3) {
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string(3) "471"
["question_id"]=>
string(3) "456"
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string(4) "1814"
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[5]=>
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["Question"]=>
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string(2) "43"
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string(18601) "
In figure are shown charges q 1 = + 2 × 10–8 C and q 2 = – 0.4 × 10–8 C . A charge q 3 = 0.2 × 10–8 C in moved along the arc of a circle from C to D . The potential energy of q 3 [CPMT 1986]
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["Option"]=>
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[0]=>
array(3) {
["option_id"]=>
string(4) "1825"
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string(3) "459"
["opt_desc"]=>
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Will increase approximately by 76%
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[1]=>
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string(4) "1826"
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string(3) "459"
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Will decreases approximately by 76%
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[2]=>
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string(4) "1827"
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string(3) "459"
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Will remain same
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[3]=>
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string(4) "1828"
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string(3) "459"
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Will increases approximately by 12%
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["Answer"]=>
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[0]=>
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string(3) "474"
["question_id"]=>
string(3) "459"
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[6]=>
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string(2) "43"
["ques_text"]=>
string(693) "
Potential at a point x -distance from the centre inside the conducting sphere of radius R and charged with charge Q is [MP PMT 2001]
"
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string(3) "460"
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["Option"]=>
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Q/R
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[1]=>
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Q/x
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[2]=>
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Q/x2
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[3]=>
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xQ
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string(3) "460"
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Number of electrons in one coulomb of charge will be [RPET 2001; MP PMT/PET 1998]
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string(3) "527"
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["Option"]=>
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5.46 x 1029
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[1]=>
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6.25 x 1018
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[2]=>
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1.6 x 1019
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[3]=>
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9 x 1011
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string(7767) "
Does this graph represents correct relation for a capacitor.
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True
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[1]=>
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string(4) "2476"
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string(3) "625"
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False
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["Answer"]=>
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string(3) "648"
["question_id"]=>
string(3) "625"
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[9]=>
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string(398) "
A sphere of 4 cm radius is suspended within a hollow sphere of 6 cm radius. The inner sphere is charged to a potential 3 e.s.u. When the outer sphere is earthed. The charge on the inner sphere is [MP PMT 1991]
"
["question_id"]=>
string(3) "626"
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["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "2477"
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string(3) "626"
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string(30) "
54 e.s.u.
"
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[1]=>
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string(4) "2478"
["question_id"]=>
string(3) "626"
["opt_desc"]=>
string(36) "
1/4 e.s.u
"
}
[2]=>
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string(4) "2479"
["question_id"]=>
string(3) "626"
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string(29) "
30 e.s.u
"
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[3]=>
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["question_id"]=>
string(3) "626"
["opt_desc"]=>
string(28) "
36e.s.u
"
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}
["Answer"]=>
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[0]=>
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[10]=>
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Eight drops of mercury of same radius and having same charge coalesce to form a big drop. Capacitance of big drop relative
"
["question_id"]=>
string(3) "627"
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["Option"]=>
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[0]=>
array(3) {
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string(4) "2481"
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16 times
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[1]=>
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string(4) "2482"
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string(3) "627"
["opt_desc"]=>
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8 times
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[2]=>
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string(4) "2483"
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string(3) "627"
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4 times
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[3]=>
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string(4) "2484"
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string(3) "627"
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2 times
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["Answer"]=>
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[0]=>
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string(3) "650"
["question_id"]=>
string(3) "627"
["option_id"]=>
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[11]=>
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string(2) "71"
["ques_text"]=>
string(554) "
A beam of electrons moving at a speed of 106 m/s along a line produces a current of 1.6 ´ 10–6 A . The number of electrons in the 1 metre of the beam is [CPMT 2000]
"
["question_id"]=>
string(3) "725"
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["Option"]=>
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[0]=>
array(3) {
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string(4) "2873"
["question_id"]=>
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106
"
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[1]=>
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string(4) "2874"
["question_id"]=>
string(3) "725"
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107
"
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[2]=>
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string(4) "2875"
["question_id"]=>
string(3) "725"
["opt_desc"]=>
string(27) "
1014
"
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[3]=>
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string(4) "2876"
["question_id"]=>
string(3) "725"
["opt_desc"]=>
string(27) "
1019
"
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["Answer"]=>
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[0]=>
array(3) {
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string(3) "748"
["question_id"]=>
string(3) "725"
["option_id"]=>
string(4) "2874"
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[12]=>
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["Question"]=>
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string(356) "
A copper wire of length 1m and radius 1mm is joined in series with an iron wire of length 2m and radius 3mm and a current is passed through the wire. The ratio of current densities in the copper and iron wire is [MP PMT 1994]
"
["question_id"]=>
string(3) "727"
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["Option"]=>
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[0]=>
array(3) {
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string(4) "2881"
["question_id"]=>
string(3) "727"
["opt_desc"]=>
string(18) "
18 : 1
"
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[1]=>
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string(4) "2882"
["question_id"]=>
string(3) "727"
["opt_desc"]=>
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9: 1
"
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[2]=>
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string(4) "2883"
["question_id"]=>
string(3) "727"
["opt_desc"]=>
string(17) "
6 : 1
"
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[3]=>
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["question_id"]=>
string(3) "727"
["opt_desc"]=>
string(15) "
3:2
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["Answer"]=>
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["question_id"]=>
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[13]=>
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string(2) "71"
["ques_text"]=>
string(2188) "
From the graph between current i & voltage V shown, identity the portion corresponding to negative resistance[CBSE PMT 1997]
"
["question_id"]=>
string(3) "729"
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["Option"]=>
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[0]=>
array(3) {
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string(4) "2889"
["question_id"]=>
string(3) "729"
["opt_desc"]=>
string(14) "
AB
"
}
[1]=>
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string(4) "2890"
["question_id"]=>
string(3) "729"
["opt_desc"]=>
string(14) "
BC
"
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[2]=>
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string(4) "2891"
["question_id"]=>
string(3) "729"
["opt_desc"]=>
string(14) "
CD
"
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[3]=>
array(3) {
["option_id"]=>
string(4) "2892"
["question_id"]=>
string(3) "729"
["opt_desc"]=>
string(14) "
DE
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
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string(3) "752"
["question_id"]=>
string(3) "729"
["option_id"]=>
string(4) "2891"
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[14]=>
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["Question"]=>
array(3) {
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string(2) "74"
["ques_text"]=>
string(207) "
A and B are two wires. The radius of A is twice that of B . they are stretched by the same load. Then the stress on B is [MP PMT 1993]
"
["question_id"]=>
string(3) "763"
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["Option"]=>
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[0]=>
array(3) {
["option_id"]=>
string(4) "3025"
["question_id"]=>
string(3) "763"
["opt_desc"]=>
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Equal to that on A
"
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[1]=>
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string(4) "3026"
["question_id"]=>
string(3) "763"
["opt_desc"]=>
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Four times that on A
"
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[2]=>
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string(4) "3027"
["question_id"]=>
string(3) "763"
["opt_desc"]=>
string(40) "
Two times that on A
"
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[3]=>
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string(4) "3028"
["question_id"]=>
string(3) "763"
["opt_desc"]=>
string(32) "
Half that of A
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
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string(3) "786"
["question_id"]=>
string(3) "763"
["option_id"]=>
string(4) "3026"
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[15]=>
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["Question"]=>
array(3) {
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string(2) "74"
["ques_text"]=>
string(427) "
The Young’s modulus of a wire of length L and radius r is Y N /m 2 . If the length and radius are reduced to L /2 and r /2, then its Young’s modulus will be [MP PMT 1985]
"
["question_id"]=>
string(3) "770"
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["Option"]=>
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[0]=>
array(3) {
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string(4) "3053"
["question_id"]=>
string(3) "770"
["opt_desc"]=>
string(15) "
Y/2
"
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[1]=>
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string(4) "3054"
["question_id"]=>
string(3) "770"
["opt_desc"]=>
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Y
"
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[2]=>
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string(4) "3055"
["question_id"]=>
string(3) "770"
["opt_desc"]=>
string(14) "
2Y
"
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[3]=>
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string(4) "3056"
["question_id"]=>
string(3) "770"
["opt_desc"]=>
string(14) "
4Y
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
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string(3) "793"
["question_id"]=>
string(3) "770"
["option_id"]=>
string(4) "3054"
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[16]=>
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["Question"]=>
array(3) {
["test_id"]=>
string(2) "74"
["ques_text"]=>
string(204) "
A fixed volume of iron is drawn into a wire of length L . The extension x produced in this wire by a constant force F is proportional to[MP PMT 1999]
"
["question_id"]=>
string(3) "771"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3057"
["question_id"]=>
string(3) "771"
["opt_desc"]=>
string(27) "
1/L2
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3058"
["question_id"]=>
string(3) "771"
["opt_desc"]=>
string(15) "
1/L
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3059"
["question_id"]=>
string(3) "771"
["opt_desc"]=>
string(25) "
L2
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3060"
["question_id"]=>
string(3) "771"
["opt_desc"]=>
string(13) "
L
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "794"
["question_id"]=>
string(3) "771"
["option_id"]=>
string(4) "3059"
}
}
}
[17]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "74"
["ques_text"]=>
string(332) "
When a 4 kg mass is hung vertically on a light spring that obeys Hooke’s law, the spring stretches by 2 cms . The work required to be done by an external agent in the stretching this spring by 5cms will be (g = 9.8 m /s 2 )[MP PMT 1995]
"
["question_id"]=>
string(3) "775"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3073"
["question_id"]=>
string(3) "775"
["opt_desc"]=>
string(28) "
4.900 J
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3074"
["question_id"]=>
string(3) "775"
["opt_desc"]=>
string(28) "
2.450 J
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3075"
["question_id"]=>
string(3) "775"
["opt_desc"]=>
string(28) "
0.495 J
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3076"
["question_id"]=>
string(3) "775"
["opt_desc"]=>
string(28) "
0.245 J
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "798"
["question_id"]=>
string(3) "775"
["option_id"]=>
string(4) "3074"
}
}
}
[18]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "74"
["ques_text"]=>
string(164) "
A uniform cube is subjected to volume compression. If each side is decreased by 1%,then bulk strain is [EAMCET (Engg.) 1995; DPMT 2000]
"
["question_id"]=>
string(3) "777"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3081"
["question_id"]=>
string(3) "777"
["opt_desc"]=>
string(16) "
0.01
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3082"
["question_id"]=>
string(3) "777"
["opt_desc"]=>
string(16) "
0.06
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3083"
["question_id"]=>
string(3) "777"
["opt_desc"]=>
string(16) "
0.02
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3084"
["question_id"]=>
string(3) "777"
["opt_desc"]=>
string(16) "
0.03
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "800"
["question_id"]=>
string(3) "777"
["option_id"]=>
string(4) "3084"
}
}
}
[19]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "71"
["ques_text"]=>
string(3159) "
The magnitude and direction of the current in the circuit shown will be [CPMT 1986, 88]
"
["question_id"]=>
string(3) "782"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3097"
["question_id"]=>
string(3) "782"
["opt_desc"]=>
string(67) "
(7/3)A from a to b through e
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3098"
["question_id"]=>
string(3) "782"
["opt_desc"]=>
string(68) "
(7/3)A from b and a through e
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3099"
["question_id"]=>
string(3) "782"
["opt_desc"]=>
string(75) "
1.0 A from b to a through e
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3100"
["question_id"]=>
string(3) "782"
["opt_desc"]=>
string(75) "
1.0 A from a to b through e
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "805"
["question_id"]=>
string(3) "782"
["option_id"]=>
string(4) "3100"
}
}
}
[20]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "71"
["ques_text"]=>
string(5205) "
What will be the equivalent resistance of circuit shown in figure between points A and D [CBSE PMT 1996]
"
["question_id"]=>
string(3) "783"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3101"
["question_id"]=>
string(3) "783"
["opt_desc"]=>
string(14) "
10
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3102"
["question_id"]=>
string(3) "783"
["opt_desc"]=>
string(14) "
20
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3103"
["question_id"]=>
string(3) "783"
["opt_desc"]=>
string(14) "
30
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3104"
["question_id"]=>
string(3) "783"
["opt_desc"]=>
string(14) "
40
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "806"
["question_id"]=>
string(3) "783"
["option_id"]=>
string(4) "3103"
}
}
}
[21]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "86"
["ques_text"]=>
string(89) "
Which of the following compound does not exist? [AIPMT 1989]
"
["question_id"]=>
string(3) "892"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3537"
["question_id"]=>
string(3) "892"
["opt_desc"]=>
string(27) "
NCl5
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3538"
["question_id"]=>
string(3) "892"
["opt_desc"]=>
string(27) "
AsF5
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3539"
["question_id"]=>
string(3) "892"
["opt_desc"]=>
string(28) "
SbCl5
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3540"
["question_id"]=>
string(3) "892"
["opt_desc"]=>
string(26) "
PF5
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "916"
["question_id"]=>
string(3) "892"
["option_id"]=>
string(4) "3537"
}
}
}
[22]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "86"
["ques_text"]=>
string(117) "
It is possible to obtain oxygen from air by fractional distillation because [AIPMT 1989]
"
["question_id"]=>
string(3) "893"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3541"
["question_id"]=>
string(3) "893"
["opt_desc"]=>
string(78) "
Oxygen is in a different group of the periodic table from nitrogen
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3542"
["question_id"]=>
string(3) "893"
["opt_desc"]=>
string(49) "
Oxygen is more reactive than nitrogen
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3543"
["question_id"]=>
string(3) "893"
["opt_desc"]=>
string(47) "
Oxygen has higher b.p than nitrogen
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3544"
["question_id"]=>
string(3) "893"
["opt_desc"]=>
string(52) "
Oxygen has a lower density than nitrogen
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "917"
["question_id"]=>
string(3) "893"
["option_id"]=>
string(4) "3543"
}
}
}
[23]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "86"
["ques_text"]=>
string(108) "
Compared with the alkaline earth metals, the alkali metals exhibit [AIPMT 1990]
"
["question_id"]=>
string(3) "894"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3545"
["question_id"]=>
string(3) "894"
["opt_desc"]=>
string(31) "
Smaller ionic radii
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3546"
["question_id"]=>
string(3) "894"
["opt_desc"]=>
string(33) "
Higher boiling points
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3547"
["question_id"]=>
string(3) "894"
["opt_desc"]=>
string(28) "
Greater hardness
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3548"
["question_id"]=>
string(3) "894"
["opt_desc"]=>
string(37) "
Lower ionisation energies
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "918"
["question_id"]=>
string(3) "894"
["option_id"]=>
string(4) "3548"
}
}
}
[24]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "86"
["ques_text"]=>
string(72) "
Hypo is used in photography to [AIPMT 1988]
"
["question_id"]=>
string(3) "895"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3549"
["question_id"]=>
string(3) "895"
["opt_desc"]=>
string(49) "
Reduce AgBr grains to metallic silver
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3550"
["question_id"]=>
string(3) "895"
["opt_desc"]=>
string(50) "
Convert metallic silver to silver salt
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3551"
["question_id"]=>
string(3) "895"
["opt_desc"]=>
string(67) "
Remove undecomposed silver bromide as a soluble complex
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3552"
["question_id"]=>
string(3) "895"
["opt_desc"]=>
string(32) "
Remove reduce silver
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "919"
["question_id"]=>
string(3) "895"
["option_id"]=>
string(4) "3551"
}
}
}
[25]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "86"
["ques_text"]=>
string(153) "
When orthophosphoric acid is heated to 600° C, the product formed is [AIPMT
1989]
"
["question_id"]=>
string(3) "896"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3553"
["question_id"]=>
string(3) "896"
["opt_desc"]=>
string(26) "
PH3
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3554"
["question_id"]=>
string(3) "896"
["opt_desc"]=>
string(38) "
P2 O5
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3555"
["question_id"]=>
string(3) "896"
["opt_desc"]=>
string(39) "
H3 PO3
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3556"
["question_id"]=>
string(3) "896"
["opt_desc"]=>
string(27) "
HPO3
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "920"
["question_id"]=>
string(3) "896"
["option_id"]=>
string(4) "3556"
}
}
}
[26]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "86"
["ques_text"]=>
string(120) "
The gases respectively absorbed by alkaline pyragallol and oil of cinnamon are [AIPMT 1989]
"
["question_id"]=>
string(3) "897"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3557"
["question_id"]=>
string(3) "897"
["opt_desc"]=>
string(41) "
O3 , CH4
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3558"
["question_id"]=>
string(3) "897"
["opt_desc"]=>
string(40) "
O2 , O3
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3559"
["question_id"]=>
string(3) "897"
["opt_desc"]=>
string(42) "
SO2 , CH4
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3560"
["question_id"]=>
string(3) "897"
["opt_desc"]=>
string(41) "
N2 O, O3
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "921"
["question_id"]=>
string(3) "897"
["option_id"]=>
string(4) "3558"
}
}
}
[27]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "86"
["ques_text"]=>
string(72) "
An example of a double salt is [AIPMT 1989]
"
["question_id"]=>
string(3) "898"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3561"
["question_id"]=>
string(3) "898"
["opt_desc"]=>
string(28) "
Bleaching powder
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3562"
["question_id"]=>
string(3) "898"
["opt_desc"]=>
string(45) "
K4 [Fe(CN)6 ]
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3563"
["question_id"]=>
string(3) "898"
["opt_desc"]=>
string(16) "
Hypo
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3564"
["question_id"]=>
string(3) "898"
["opt_desc"]=>
string(23) "
Potash alum
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "922"
["question_id"]=>
string(3) "898"
["option_id"]=>
string(4) "3564"
}
}
}
[28]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "86"
["ques_text"]=>
string(108) "
Compared with the alkaline earth metals, the alkali metals exhibit [AIPMT 1990]
"
["question_id"]=>
string(3) "899"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3565"
["question_id"]=>
string(3) "899"
["opt_desc"]=>
string(31) "
Smaller ionic radii
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3566"
["question_id"]=>
string(3) "899"
["opt_desc"]=>
string(33) "
Higher boiling points
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3567"
["question_id"]=>
string(3) "899"
["opt_desc"]=>
string(28) "
Greater hardness
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3568"
["question_id"]=>
string(3) "899"
["opt_desc"]=>
string(37) "
Lower ionisation energies
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "923"
["question_id"]=>
string(3) "899"
["option_id"]=>
string(4) "3568"
}
}
}
[29]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "86"
["ques_text"]=>
string(117) "
Each of the following is true for white and red phosphorus except that they [AIPMT 1989]
"
["question_id"]=>
string(3) "900"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3569"
["question_id"]=>
string(3) "900"
["opt_desc"]=>
string(46) "
Both are soluble in CS2
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3570"
["question_id"]=>
string(3) "900"
["opt_desc"]=>
string(45) "
Can be oxidized by heating in air
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3571"
["question_id"]=>
string(3) "900"
["opt_desc"]=>
string(45) "
Consist of the same kind of atoms
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3572"
["question_id"]=>
string(3) "900"
["opt_desc"]=>
string(45) "
Can be converted into one another
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "924"
["question_id"]=>
string(3) "900"
["option_id"]=>
string(4) "3569"
}
}
}
[30]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "86"
["ques_text"]=>
string(92) "
Which of the following is a nitric acid anhydride? [AIPMT 1988]
"
["question_id"]=>
string(3) "901"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3573"
["question_id"]=>
string(3) "901"
["opt_desc"]=>
string(14) "
NO
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3574"
["question_id"]=>
string(3) "901"
["opt_desc"]=>
string(26) "
NO2
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3575"
["question_id"]=>
string(3) "901"
["opt_desc"]=>
string(38) "
N2 O5
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3576"
["question_id"]=>
string(3) "901"
["opt_desc"]=>
string(38) "
N2 O3
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "925"
["question_id"]=>
string(3) "901"
["option_id"]=>
string(4) "3575"
}
}
}
[31]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "86"
["ques_text"]=>
string(90) "
The substance used a smoke screen in warfare is [AIPMT 1989]
"
["question_id"]=>
string(3) "902"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3577"
["question_id"]=>
string(3) "902"
["opt_desc"]=>
string(28) "
SiCl4
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3578"
["question_id"]=>
string(3) "902"
["opt_desc"]=>
string(26) "
PH3
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3579"
["question_id"]=>
string(3) "902"
["opt_desc"]=>
string(27) "
PCl5
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3580"
["question_id"]=>
string(3) "902"
["opt_desc"]=>
string(21) "
Acetylene
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "926"
["question_id"]=>
string(3) "902"
["option_id"]=>
string(4) "3577"
}
}
}
[32]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "86"
["ques_text"]=>
string(104) "
Bleaching powder is obtained by the action of chlorine gas and [AIPMT 1988]
"
["question_id"]=>
string(3) "904"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3585"
["question_id"]=>
string(3) "904"
["opt_desc"]=>
string(49) "
Dilute solution of Ca(OH)2
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3586"
["question_id"]=>
string(3) "904"
["opt_desc"]=>
string(55) "
Concentrated solution of Ca(OH)2
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3587"
["question_id"]=>
string(3) "904"
["opt_desc"]=>
string(19) "
Dry CaO
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3588"
["question_id"]=>
string(3) "904"
["opt_desc"]=>
string(27) "
Dry slaked lime
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "928"
["question_id"]=>
string(3) "904"
["option_id"]=>
string(4) "3588"
}
}
}
[33]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "86"
["ques_text"]=>
string(102) "
Bleaching powder reacts with a few drops of conc HCl to give [AIPMT 1989]
"
["question_id"]=>
string(3) "905"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3589"
["question_id"]=>
string(3) "905"
["opt_desc"]=>
string(20) "
Chlorine
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3590"
["question_id"]=>
string(3) "905"
["opt_desc"]=>
string(30) "
Hypo chlorous acid
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3591"
["question_id"]=>
string(3) "905"
["opt_desc"]=>
string(25) "
Calcium oxide
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3592"
["question_id"]=>
string(3) "905"
["opt_desc"]=>
string(18) "
Oxygen
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "929"
["question_id"]=>
string(3) "905"
["option_id"]=>
string(4) "3589"
}
}
}
[34]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "86"
["ques_text"]=>
string(99) "
Which of the following atoms will have the smallest size? [AIPMT 1989]
"
["question_id"]=>
string(3) "906"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3593"
["question_id"]=>
string(3) "906"
["opt_desc"]=>
string(24) "
Ionic radius
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3594"
["question_id"]=>
string(3) "906"
["opt_desc"]=>
string(25) "
Melting point
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3595"
["question_id"]=>
string(3) "906"
["opt_desc"]=>
string(29) "
Electronegativity
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3596"
["question_id"]=>
string(3) "906"
["opt_desc"]=>
string(35) "
First ionisation energy
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "930"
["question_id"]=>
string(3) "906"
["option_id"]=>
string(4) "3593"
}
}
}
[35]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "57"
["ques_text"]=>
string(248) "
A soap bubble is given negative charge. Its radius will [DCE 2000; RPMT 1997; CPMT 1997; MNR 1988]
"
["question_id"]=>
string(3) "922"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3657"
["question_id"]=>
string(3) "922"
["opt_desc"]=>
string(20) "
Increase
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3658"
["question_id"]=>
string(3) "922"
["opt_desc"]=>
string(20) "
Decrease
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3659"
["question_id"]=>
string(3) "922"
["opt_desc"]=>
string(28) "
Remain unchanged
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3660"
["question_id"]=>
string(3) "922"
["opt_desc"]=>
string(21) "
Fluctuate
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "946"
["question_id"]=>
string(3) "922"
["option_id"]=>
string(4) "3657"
}
}
}
[36]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "57"
["ques_text"]=>
string(234) "
A half ring of radius R has a charge of λ per unit length. The electric field at the centre is
[CPMT 2000; CBSE PMT 2000; REE 1999]
"
["question_id"]=>
string(3) "924"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3665"
["question_id"]=>
string(3) "924"
["opt_desc"]=>
string(16) "
Zero
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3666"
["question_id"]=>
string(3) "924"
["opt_desc"]=>
string(24) "
k λ/R
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3667"
["question_id"]=>
string(3) "924"
["opt_desc"]=>
string(25) "
2k λ/R
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3668"
["question_id"]=>
string(3) "924"
["opt_desc"]=>
string(28) "
kπ λ/R
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "948"
["question_id"]=>
string(3) "924"
["option_id"]=>
string(4) "3667"
}
}
}
[37]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "57"
["ques_text"]=>
string(709) "
Equal charges Q are placed at the vertices A and B of an equilateral triangle ABC of side a . The magnitude of electric field at the point A is [MP PMT 1997]
"
["question_id"]=>
string(3) "925"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3669"
["question_id"]=>
string(3) "925"
["opt_desc"]=>
string(202) "
Q 4 π ε 0 a 2
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3670"
["question_id"]=>
string(3) "925"
["opt_desc"]=>
string(240) "
2 Q 4 π ε 0 a 2
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3671"
["question_id"]=>
string(3) "925"
["opt_desc"]=>
string(240) "
3 Q 4 π ε 0 a 2
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3672"
["question_id"]=>
string(3) "925"
["opt_desc"]=>
string(202) "
Q 2 π ε 0 a 2
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "949"
["question_id"]=>
string(3) "925"
["option_id"]=>
string(4) "3671"
}
}
}
[38]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "57"
["ques_text"]=>
string(374) "
A sphere of 4 cm radius is suspended within a hollow sphere of 6 cm radius. The inner sphere is charged to a potential 3 e.s.u. When the outer sphere is earthed. The charge on the inner sphere is [MP PMT 1991]
"
["question_id"]=>
string(3) "926"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3673"
["question_id"]=>
string(3) "926"
["opt_desc"]=>
string(39) "
1/2 e.s.u
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3674"
["question_id"]=>
string(3) "926"
["opt_desc"]=>
string(20) "
36 e.s.u
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3675"
["question_id"]=>
string(3) "926"
["opt_desc"]=>
string(20) "
54 e.s.u
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3676"
["question_id"]=>
string(3) "926"
["opt_desc"]=>
string(20) "
22 e.s.u
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "950"
["question_id"]=>
string(3) "926"
["option_id"]=>
string(4) "3674"
}
}
}
[39]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "57"
["ques_text"]=>
string(567) "
The electric field, at a distance of 20 cm from the centre of a dielectric sphere of radius 10 cm is 100 V/m . The ‘E ’ at 3 cm distance from the centre of sphere is [RPMT 2001]
"
["question_id"]=>
string(3) "928"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3679"
["question_id"]=>
string(3) "928"
["opt_desc"]=>
string(28) "
100 V/m
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3680"
["question_id"]=>
string(3) "928"
["opt_desc"]=>
string(28) "
125 V/m
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3681"
["question_id"]=>
string(3) "928"
["opt_desc"]=>
string(28) "
120 V/m
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3682"
["question_id"]=>
string(3) "928"
["opt_desc"]=>
string(16) "
Zero
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "952"
["question_id"]=>
string(3) "928"
["option_id"]=>
string(4) "3681"
}
}
}
[40]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "88"
["ques_text"]=>
string(2569) "
The relationship between force and position is shown in the figure given (in one dimensional case). The work done by the force in displacing a body from x=1 cm to x= 5 cm is [CPMT 1976]
"
["question_id"]=>
string(3) "943"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3733"
["question_id"]=>
string(3) "943"
["opt_desc"]=>
string(19) "
20 ergs
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3734"
["question_id"]=>
string(3) "943"
["opt_desc"]=>
string(19) "
60 ergs
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3735"
["question_id"]=>
string(3) "943"
["opt_desc"]=>
string(19) "
70 ergs
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3736"
["question_id"]=>
string(3) "943"
["opt_desc"]=>
string(20) "
700 ergs
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "967"
["question_id"]=>
string(3) "943"
["option_id"]=>
string(4) "3733"
}
}
}
[41]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "89"
["ques_text"]=>
string(204) "
Which of the following phenomenon does not show the wave nature of light [RPET 2003; MP PMT 2003]
"
["question_id"]=>
string(3) "953"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3769"
["question_id"]=>
string(3) "953"
["opt_desc"]=>
string(23) "
Diffraction
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3770"
["question_id"]=>
string(3) "953"
["opt_desc"]=>
string(24) "
Interference
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3771"
["question_id"]=>
string(3) "953"
["opt_desc"]=>
string(22) "
Refraction
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3772"
["question_id"]=>
string(3) "953"
["opt_desc"]=>
string(32) "
Photoelectric effect
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "977"
["question_id"]=>
string(3) "953"
["option_id"]=>
string(4) "3772"
}
}
}
[42]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "89"
["ques_text"]=>
string(179) "
As a result of interference of two coherent sources of light, energy is [MP PMT 2002; KCET 2003]
"
["question_id"]=>
string(3) "954"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3773"
["question_id"]=>
string(3) "954"
["opt_desc"]=>
string(21) "
Increased
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3774"
["question_id"]=>
string(3) "954"
["opt_desc"]=>
string(70) "
Redistributed and the distribution does not vary with time
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3775"
["question_id"]=>
string(3) "954"
["opt_desc"]=>
string(21) "
Decreased
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3776"
["question_id"]=>
string(3) "954"
["opt_desc"]=>
string(64) "
Redistributed and the distribution changes with time
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "978"
["question_id"]=>
string(3) "954"
["option_id"]=>
string(4) "3774"
}
}
}
[43]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "89"
["ques_text"]=>
string(389) "
Two coherent monochromatic light beams of intensities I and 4I are superposed. The maximum and minimum possible intensities in the resulting beam are [IIT-JEE 1988; AIIMS 1997; MP PMT 1997; MP PET 1999; KCET (Engg./Med.) 2000; MP PET 2002]
"
["question_id"]=>
string(3) "955"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "3777"
["question_id"]=>
string(3) "955"
["opt_desc"]=>
string(20) "
5I and I
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "3778"
["question_id"]=>
string(3) "955"
["opt_desc"]=>
string(22) "
5I and 3 I
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "3779"
["question_id"]=>
string(3) "955"
["opt_desc"]=>
string(20) "
9I and I
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "3780"
["question_id"]=>
string(3) "955"
["opt_desc"]=>
string(21) "
9I and 3I
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(3) "979"
["question_id"]=>
string(3) "955"
["option_id"]=>
string(4) "3779"
}
}
}
[44]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "69"
["ques_text"]=>
string(134) "
Which one of the following orders is not in accordance with the property stated against it? [AIPMT 2006]
"
["question_id"]=>
string(4) "1153"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "4569"
["question_id"]=>
string(4) "1153"
["opt_desc"]=>
string(102) "
F2 > Cl2 > Br2 > I2 : Oxidising power
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "4570"
["question_id"]=>
string(4) "1153"
["opt_desc"]=>
string(67) "
HI > HBr > HCl > HF : Acidic property in water
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "4571"
["question_id"]=>
string(4) "1153"
["opt_desc"]=>
string(104) "
F2 > Cl2 > Br2 > I2 : Electronegativity
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "4572"
["question_id"]=>
string(4) "1153"
["opt_desc"]=>
string(104) "
F2 > Cl2 > Br2 > I2 : Bond energy
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "1177"
["question_id"]=>
string(4) "1153"
["option_id"]=>
string(4) "4572"
}
}
}
[45]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "69"
["ques_text"]=>
string(139) "
With which of the following electronic configuration an atom has the lowest ionisation enthalpy? [AIPMT 2007]
"
["question_id"]=>
string(4) "1154"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "4573"
["question_id"]=>
string(4) "1154"
["opt_desc"]=>
string(55) "
1s2 ,2s2 2p5
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "4574"
["question_id"]=>
string(4) "1154"
["opt_desc"]=>
string(62) "
1s2 , 2s2 2p3
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "4575"
["question_id"]=>
string(4) "1154"
["opt_desc"]=>
string(70) "
1s2 , 2s2 2p5 3s1
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "4576"
["question_id"]=>
string(4) "1154"
["opt_desc"]=>
string(57) "
1s2 , 2s2 2p6
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "1178"
["question_id"]=>
string(4) "1154"
["option_id"]=>
string(4) "4575"
}
}
}
[46]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "117"
["ques_text"]=>
string(2097) "
The adjoining diagram shows the velocity versus time plot for, a particle. The work done by the force on the particle is positive from
"
["question_id"]=>
string(4) "1306"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "5153"
["question_id"]=>
string(4) "1306"
["opt_desc"]=>
string(36) "
A to B
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "5154"
["question_id"]=>
string(4) "1306"
["opt_desc"]=>
string(36) "
B to C
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "5155"
["question_id"]=>
string(4) "1306"
["opt_desc"]=>
string(36) "
C to D
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "5156"
["question_id"]=>
string(4) "1306"
["opt_desc"]=>
string(36) "
D to E
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "1336"
["question_id"]=>
string(4) "1306"
["option_id"]=>
string(4) "5153"
}
}
}
[47]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(2) "41"
["ques_text"]=>
string(7219) "
Two masses of 5 kg and 10 kg are connected to a pulley as shown. What will be the acceleration of the system (g = acceleration due to gravity)
"
["question_id"]=>
string(4) "1361"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "5373"
["question_id"]=>
string(4) "1361"
["opt_desc"]=>
string(13) "
g
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "5374"
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g/2
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string(4) "1361"
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g/3
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[3]=>
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string(4) "1361"
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g/4
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string(4) "1361"
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string(4) "5375"
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[48]=>
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["Question"]=>
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["ques_text"]=>
string(2344) "
Two masses M and m are connected by a weight less string. They are pulled by a force F on a frictionless horizontal surface. The tension in the string will be
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string(4) "1362"
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["Option"]=>
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[0]=>
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FM/(m + M)
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[1]=>
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string(4) "1362"
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F/(M + m)
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[2]=>
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string(4) "1362"
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FM/m
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}
[3]=>
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string(4) "5380"
["question_id"]=>
string(4) "1362"
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string(22) "
Fm/(M + m)
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["Answer"]=>
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[0]=>
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string(4) "1395"
["question_id"]=>
string(4) "1362"
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string(4) "5377"
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}
}
[49]=>
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["Question"]=>
array(3) {
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["ques_text"]=>
string(214) "
Flight and fight hormone is: (CPMT 2007)
"
["question_id"]=>
string(4) "1426"
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[0]=>
array(3) {
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["question_id"]=>
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Adrenalin
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[1]=>
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string(4) "5634"
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string(4) "1426"
["opt_desc"]=>
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Thyroxine
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[2]=>
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string(4) "5635"
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string(4) "1426"
["opt_desc"]=>
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ADH
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[3]=>
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["question_id"]=>
string(4) "1426"
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Oxytocin
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["Answer"]=>
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[0]=>
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string(4) "1459"
["question_id"]=>
string(4) "1426"
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string(4) "5633"
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}
[50]=>
array(3) {
["Question"]=>
array(3) {
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string(3) "124"
["ques_text"]=>
string(117) "
Which hormone is responsible for milk ejection after the birth of the baby ? ( Har. PMT 2008)
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["question_id"]=>
string(4) "1435"
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["Option"]=>
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[0]=>
array(3) {
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["question_id"]=>
string(4) "1435"
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string(20) "
Oxytocin
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "5670"
["question_id"]=>
string(4) "1435"
["opt_desc"]=>
string(24) "
Progesterone
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "5671"
["question_id"]=>
string(4) "1435"
["opt_desc"]=>
string(21) "
Prolactin
"
}
[3]=>
array(3) {
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string(4) "5672"
["question_id"]=>
string(4) "1435"
["opt_desc"]=>
string(21) "
Estrogens
"
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}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "1468"
["question_id"]=>
string(4) "1435"
["option_id"]=>
string(4) "5669"
}
}
}
[51]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "124"
["ques_text"]=>
string(254) "
Somatostatin is secreted by : (up-CPMT 2010)
"
["question_id"]=>
string(4) "1444"
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["Option"]=>
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[0]=>
array(3) {
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string(4) "5705"
["question_id"]=>
string(4) "1444"
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Islets of Langerhans
"
}
[1]=>
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string(4) "5706"
["question_id"]=>
string(4) "1444"
["opt_desc"]=>
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Brunner’s glands
"
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[2]=>
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["option_id"]=>
string(4) "5707"
["question_id"]=>
string(4) "1444"
["opt_desc"]=>
string(23) "
Chief Cells
"
}
[3]=>
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["option_id"]=>
string(4) "5708"
["question_id"]=>
string(4) "1444"
["opt_desc"]=>
string(24) "
Goblet cells
"
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}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "1477"
["question_id"]=>
string(4) "1444"
["option_id"]=>
string(4) "5705"
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}
[52]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "124"
["ques_text"]=>
string(222) "
The hormone which regulates sleep – wake cycle in man is : (Kerala PMT – 2010)
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["question_id"]=>
string(4) "1445"
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[0]=>
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string(4) "5709"
["question_id"]=>
string(4) "1445"
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string(20) "
Oxytocin
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}
[1]=>
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string(4) "5710"
["question_id"]=>
string(4) "1445"
["opt_desc"]=>
string(23) "
Vasopressin
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}
[2]=>
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["option_id"]=>
string(4) "5711"
["question_id"]=>
string(4) "1445"
["opt_desc"]=>
string(21) "
Melatonin
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}
[3]=>
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string(4) "5712"
["question_id"]=>
string(4) "1445"
["opt_desc"]=>
string(21) "
Thyroxine
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}
["Answer"]=>
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[0]=>
array(3) {
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string(4) "1478"
["question_id"]=>
string(4) "1445"
["option_id"]=>
string(4) "5711"
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[53]=>
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["Question"]=>
array(3) {
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string(3) "136"
["ques_text"]=>
string(465) "
Flight and fight hormone is: (CPMT2007)
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["question_id"]=>
string(4) "1611"
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Adrenalin
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[1]=>
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string(4) "6372"
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string(4) "1611"
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Thyroxine
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[2]=>
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string(4) "1611"
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ADH
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[3]=>
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string(4) "6374"
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string(4) "1611"
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Oxytocin
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["Answer"]=>
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[0]=>
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string(4) "1648"
["question_id"]=>
string(4) "1611"
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string(4) "6371"
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}
[54]=>
array(3) {
["Question"]=>
array(3) {
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string(3) "136"
["ques_text"]=>
string(383) "
Which hormone is responsible for milk ejection after the birth of the baby ? ( Har. PMT 2008)
"
["question_id"]=>
string(4) "1615"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "6387"
["question_id"]=>
string(4) "1615"
["opt_desc"]=>
string(20) "
Oxytocin
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}
[1]=>
array(3) {
["option_id"]=>
string(4) "6388"
["question_id"]=>
string(4) "1615"
["opt_desc"]=>
string(24) "
Progesterone
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[2]=>
array(3) {
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string(4) "6389"
["question_id"]=>
string(4) "1615"
["opt_desc"]=>
string(21) "
Prolactin
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}
[3]=>
array(3) {
["option_id"]=>
string(4) "6390"
["question_id"]=>
string(4) "1615"
["opt_desc"]=>
string(21) "
Estrogens
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}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
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string(4) "1652"
["question_id"]=>
string(4) "1615"
["option_id"]=>
string(4) "6387"
}
}
}
[55]=>
array(3) {
["Question"]=>
array(3) {
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string(3) "136"
["ques_text"]=>
string(278) "
Somatostatin is secreted by : (up-CPMT 2010)
"
["question_id"]=>
string(4) "1620"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
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string(4) "6407"
["question_id"]=>
string(4) "1620"
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string(32) "
Islets of Langerhans
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}
[1]=>
array(3) {
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string(4) "6408"
["question_id"]=>
string(4) "1620"
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Brunner’s glands
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[2]=>
array(3) {
["option_id"]=>
string(4) "6409"
["question_id"]=>
string(4) "1620"
["opt_desc"]=>
string(23) "
Chief Cells
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "6410"
["question_id"]=>
string(4) "1620"
["opt_desc"]=>
string(24) "
Goblet cells
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "1657"
["question_id"]=>
string(4) "1620"
["option_id"]=>
string(4) "6407"
}
}
}
[56]=>
array(3) {
["Question"]=>
array(3) {
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string(3) "136"
["ques_text"]=>
string(186) "
The hormone which regulates sleep – wake cycle in man is : (Kerala PMT – 2010)
"
["question_id"]=>
string(4) "1621"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "6411"
["question_id"]=>
string(4) "1621"
["opt_desc"]=>
string(32) "
Oxytocin
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "6412"
["question_id"]=>
string(4) "1621"
["opt_desc"]=>
string(23) "
Vasopressin
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}
[2]=>
array(3) {
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string(4) "6413"
["question_id"]=>
string(4) "1621"
["opt_desc"]=>
string(39) "
Melatonin
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}
[3]=>
array(3) {
["option_id"]=>
string(4) "6414"
["question_id"]=>
string(4) "1621"
["opt_desc"]=>
string(21) "
Thyroxine
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "1658"
["question_id"]=>
string(4) "1621"
["option_id"]=>
string(4) "6413"
}
}
}
[57]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "164"
["ques_text"]=>
string(10980) "
The above transformation proceeds through
"
["question_id"]=>
string(4) "2033"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "8055"
["question_id"]=>
string(4) "2033"
["opt_desc"]=>
string(34) "
Electrophilic-addition
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "8056"
["question_id"]=>
string(4) "2033"
["opt_desc"]=>
string(32) "
Benzyne intermediate
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "8057"
["question_id"]=>
string(4) "2033"
["opt_desc"]=>
string(47) "
Activated nucleophilic substitution
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "8058"
["question_id"]=>
string(4) "2033"
["opt_desc"]=>
string(49) "
Elimination, addition mechanism
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2069"
["question_id"]=>
string(4) "2033"
["option_id"]=>
string(4) "8057"
}
}
}
[58]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "184"
["ques_text"]=>
string(126) "
The ability of a substance to assume in two or more crystalline structures is called [AIPMT 1990]
"
["question_id"]=>
string(4) "2250"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "8893"
["question_id"]=>
string(4) "2250"
["opt_desc"]=>
string(21) "
Isomerism
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "8894"
["question_id"]=>
string(4) "2250"
["opt_desc"]=>
string(24) "
Polymorphism
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "8895"
["question_id"]=>
string(4) "2250"
["opt_desc"]=>
string(23) "
Isomorphism
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "8896"
["question_id"]=>
string(4) "2250"
["opt_desc"]=>
string(21) "
Amorphism
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2286"
["question_id"]=>
string(4) "2250"
["option_id"]=>
string(4) "8894"
}
}
}
[59]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "184"
["ques_text"]=>
string(52) "
Glass is a [AIPMT 1991]
"
["question_id"]=>
string(4) "2253"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "8905"
["question_id"]=>
string(4) "2253"
["opt_desc"]=>
string(18) "
Liquid
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "8906"
["question_id"]=>
string(4) "2253"
["opt_desc"]=>
string(17) "
Solid
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "8907"
["question_id"]=>
string(4) "2253"
["opt_desc"]=>
string(30) "
Supercooled liquid
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "8908"
["question_id"]=>
string(4) "2253"
["opt_desc"]=>
string(39) "
Transparent-organic polymer
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2289"
["question_id"]=>
string(4) "2253"
["option_id"]=>
string(4) "8907"
}
}
}
[60]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "184"
["ques_text"]=>
string(81) "
Which would quickly absorb oxygen [AIPMT 1991]
"
["question_id"]=>
string(4) "2255"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "8913"
["question_id"]=>
string(4) "2255"
["opt_desc"]=>
string(43) "
Alkaline solution of pyragallol
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "8914"
["question_id"]=>
string(4) "2255"
["opt_desc"]=>
string(44) "
Conc H2 SO4
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "8915"
["question_id"]=>
string(4) "2255"
["opt_desc"]=>
string(22) "
Lime water
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "8916"
["question_id"]=>
string(4) "2255"
["opt_desc"]=>
string(49) "
Alkaline solution of CuSO4
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2291"
["question_id"]=>
string(4) "2255"
["option_id"]=>
string(4) "8913"
}
}
}
[61]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "184"
["ques_text"]=>
string(56) "
Oleum is [AIPMT 1991]
"
["question_id"]=>
string(4) "2257"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "8921"
["question_id"]=>
string(4) "2257"
["opt_desc"]=>
string(22) "
Castor oil
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "8922"
["question_id"]=>
string(4) "2257"
["opt_desc"]=>
string(26) "
Oil of vitriol
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "8923"
["question_id"]=>
string(4) "2257"
["opt_desc"]=>
string(52) "
Fuming H2 SO4
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "8924"
["question_id"]=>
string(4) "2257"
["opt_desc"]=>
string(25) "
None of these
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2293"
["question_id"]=>
string(4) "2257"
["option_id"]=>
string(4) "8923"
}
}
}
[62]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "184"
["ques_text"]=>
string(97) "
P2 O5 is heated with water to give [AIPMT 1991]
"
["question_id"]=>
string(4) "2258"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(4) "8925"
["question_id"]=>
string(4) "2258"
["opt_desc"]=>
string(31) "
Hypophosphorus acid
"
}
[1]=>
array(3) {
["option_id"]=>
string(4) "8926"
["question_id"]=>
string(4) "2258"
["opt_desc"]=>
string(28) "
Phosphorous acid
"
}
[2]=>
array(3) {
["option_id"]=>
string(4) "8927"
["question_id"]=>
string(4) "2258"
["opt_desc"]=>
string(31) "
Hypophosphoric acid
"
}
[3]=>
array(3) {
["option_id"]=>
string(4) "8928"
["question_id"]=>
string(4) "2258"
["opt_desc"]=>
string(32) "
Orthophosphoric acid
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2294"
["question_id"]=>
string(4) "2258"
["option_id"]=>
string(4) "8928"
}
}
}
[63]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "197"
["ques_text"]=>
string(7571) "
Find magnetic field at centre O in each of each of the following figure
"
["question_id"]=>
string(4) "2793"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "11057"
["question_id"]=>
string(4) "2793"
["opt_desc"]=>
string(270) "
μ o i 2 r ⊙
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "11058"
["question_id"]=>
string(4) "2793"
["opt_desc"]=>
string(214) "
μ o i 2 r ⊗
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "11059"
["question_id"]=>
string(4) "2793"
["opt_desc"]=>
string(224) "
3 μ o i 8 r ⊗
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "11060"
["question_id"]=>
string(4) "2793"
["opt_desc"]=>
string(224) "
3 μ o i 8 r ⊙
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2833"
["question_id"]=>
string(4) "2793"
["option_id"]=>
string(5) "11060"
}
}
}
[64]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "204"
["ques_text"]=>
string(5728) "
For the solenoid shown in figure. The magnetic field at point P is
"
["question_id"]=>
string(4) "2813"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "11137"
["question_id"]=>
string(4) "2813"
["opt_desc"]=>
string(229) "
μ 0 n i 4 ( 3 + 1 )
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "11138"
["question_id"]=>
string(4) "2813"
["opt_desc"]=>
string(189) "
3 μ 0 n i 4
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "11139"
["question_id"]=>
string(4) "2813"
["opt_desc"]=>
string(229) "
μ 0 n i 2 ( 3 + 1 )
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "11140"
["question_id"]=>
string(4) "2813"
["opt_desc"]=>
string(235) "
μ 0 n i 4 ( 3 − 1 )
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2853"
["question_id"]=>
string(4) "2813"
["option_id"]=>
string(5) "11137"
}
}
}
[65]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "204"
["ques_text"]=>
string(7815) "
Find out the magnitude of the magnetic field at point P due to following current distribution
"
["question_id"]=>
string(4) "2817"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "11153"
["question_id"]=>
string(4) "2817"
["opt_desc"]=>
string(50) "
μo ia/ πr2
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "11154"
["question_id"]=>
string(4) "2817"
["opt_desc"]=>
string(50) "
μo ia2 / πr
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "11155"
["question_id"]=>
string(4) "2817"
["opt_desc"]=>
string(51) "
μo ia/ 2πr2
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "11156"
["question_id"]=>
string(4) "2817"
["opt_desc"]=>
string(51) "
2μo ia/ πr2
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2857"
["question_id"]=>
string(4) "2817"
["option_id"]=>
string(5) "11153"
}
}
}
[66]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "206"
["ques_text"]=>
string(3080) "
Three long, straight and parallel wires carrying currents are arranged as shown in figure. The force experienced by 10 cm length of wire Q is
"
["question_id"]=>
string(4) "2845"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "11265"
["question_id"]=>
string(4) "2845"
["opt_desc"]=>
string(72) "
1.4×10–4 N towards the right
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "11266"
["question_id"]=>
string(4) "2845"
["opt_desc"]=>
string(71) "
1.4×10–4 N towards the left
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "11267"
["question_id"]=>
string(4) "2845"
["opt_desc"]=>
string(69) "
2.6 × 10–4 N to the right
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "11268"
["question_id"]=>
string(4) "2845"
["opt_desc"]=>
string(66) "
2.6×10–4 N to the left
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2885"
["question_id"]=>
string(4) "2845"
["option_id"]=>
string(5) "11265"
}
}
}
[67]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "209"
["ques_text"]=>
string(5504) "
For the solenoid shown in figure. The magnetic field at point P is
"
["question_id"]=>
string(4) "2877"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "11393"
["question_id"]=>
string(4) "2877"
["opt_desc"]=>
string(229) "
μ 0 n i 4 ( 3 + 1 )
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "11394"
["question_id"]=>
string(4) "2877"
["opt_desc"]=>
string(189) "
3 μ 0 n i 4
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "11395"
["question_id"]=>
string(4) "2877"
["opt_desc"]=>
string(229) "
μ 0 n i 2 ( 3 + 1 )
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "11396"
["question_id"]=>
string(4) "2877"
["opt_desc"]=>
string(235) "
μ 0 n i 4 ( 3 − 1 )
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2917"
["question_id"]=>
string(4) "2877"
["option_id"]=>
string(5) "11393"
}
}
}
[68]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "209"
["ques_text"]=>
string(565) "
The coil of a galvanometer consists of 100 turns and effective area of 1 square cm . The restoring couple is 10– 8 N-m rad . The magnetic field between the pole pieces is 5 T . The current sensitivity of this galvanometer will be [MP PMT 1997]
"
["question_id"]=>
string(4) "2887"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "11433"
["question_id"]=>
string(4) "2887"
["opt_desc"]=>
string(58) "
5 x 104 rad /m amp
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "11434"
["question_id"]=>
string(4) "2887"
["opt_desc"]=>
string(55) "
5 x 10– 6 per amp
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "11435"
["question_id"]=>
string(4) "2887"
["opt_desc"]=>
string(55) "
2 x 10– 7 per amp
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "11436"
["question_id"]=>
string(4) "2887"
["opt_desc"]=>
string(42) "
5 rad./ m amp
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2927"
["question_id"]=>
string(4) "2887"
["option_id"]=>
string(5) "11436"
}
}
}
[69]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "210"
["ques_text"]=>
string(349) "
An electron (mass =9 x 10-31 kg charge =1.6 x 10-19 coul.) whose kinetic energy is 7.2 x 10-18 joule is moving in a circular orbit in a magnetic field of 9 x 10-5 weber/m2 The radius of the orbit is [MP PMT 2002]
"
["question_id"]=>
string(4) "2903"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "11497"
["question_id"]=>
string(4) "2903"
["opt_desc"]=>
string(28) "
1.25 cm
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "11498"
["question_id"]=>
string(4) "2903"
["opt_desc"]=>
string(27) "
2.5 cm
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "11499"
["question_id"]=>
string(4) "2903"
["opt_desc"]=>
string(28) "
12.5 cm
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "11500"
["question_id"]=>
string(4) "2903"
["opt_desc"]=>
string(28) "
25.0 cm
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2943"
["question_id"]=>
string(4) "2903"
["option_id"]=>
string(5) "11500"
}
}
}
[70]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "211"
["ques_text"]=>
string(15034) "
Figure shows the cress sectional view of the hollow cylindrical conductor with inner radius 'R ' and outer radius '2R ', cylinder carrying uniformly distributed current along it's axis. The magnetic induction at point 'P' at a distance 3R/2 from the axis of the cylinder will be
"
["question_id"]=>
string(4) "2904"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "11501"
["question_id"]=>
string(4) "2904"
["opt_desc"]=>
string(16) "
Zero
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "11502"
["question_id"]=>
string(4) "2904"
["opt_desc"]=>
string(225) "
5 μ 0 i 72 π R
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "11503"
["question_id"]=>
string(4) "2904"
["opt_desc"]=>
string(225) "
7 μ 0 i 18 π R
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "11504"
["question_id"]=>
string(4) "2904"
["opt_desc"]=>
string(225) "
5 μ 0 i 36 π R
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2944"
["question_id"]=>
string(4) "2904"
["option_id"]=>
string(5) "11504"
}
}
}
[71]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "212"
["ques_text"]=>
string(11595) "
Find magnetic field at centre O in each of the following figure
"
["question_id"]=>
string(4) "2920"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "11565"
["question_id"]=>
string(4) "2920"
["opt_desc"]=>
string(200) "
μ o i r ⊗
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "11566"
["question_id"]=>
string(4) "2920"
["opt_desc"]=>
string(198) "
μ o i 2 r
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "11567"
["question_id"]=>
string(4) "2920"
["opt_desc"]=>
string(223) "
μ o i 4 r ⊗
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "11568"
["question_id"]=>
string(4) "2920"
["opt_desc"]=>
string(207) "
μ o i 4 r
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2960"
["question_id"]=>
string(4) "2920"
["option_id"]=>
string(5) "11567"
}
}
}
[72]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "214"
["ques_text"]=>
string(295) "
The magnetic field at a point X on the axis of a small bar magnet is equal to the field at a point Y on the equator of the same magnet. The ratio of the distance of X and Y from the centre of the magnet is
[MP PMT 1990]
"
["question_id"]=>
string(4) "2934"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "11621"
["question_id"]=>
string(4) "2934"
["opt_desc"]=>
string(26) "
2-3
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "11622"
["question_id"]=>
string(4) "2934"
["opt_desc"]=>
string(28) "
2-1/3
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "11623"
["question_id"]=>
string(4) "2934"
["opt_desc"]=>
string(25) "
23
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "11624"
["question_id"]=>
string(4) "2934"
["opt_desc"]=>
string(27) "
21/3
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2974"
["question_id"]=>
string(4) "2934"
["option_id"]=>
string(5) "11624"
}
}
}
[73]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "214"
["ques_text"]=>
string(712) "
Two magnets are held together in a vibration magnetometer and are allowed to oscillate in the earth's magnetic field. With like poles together 12 oscillations per minute are made but for unlike poles together only 4 oscillations per minute are executed. The ratio of their magnetic moments is [MP PMT 1996]
"
["question_id"]=>
string(4) "2941"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "11649"
["question_id"]=>
string(4) "2941"
["opt_desc"]=>
string(17) "
3 : 1
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "11650"
["question_id"]=>
string(4) "2941"
["opt_desc"]=>
string(17) "
1 : 3
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "11651"
["question_id"]=>
string(4) "2941"
["opt_desc"]=>
string(17) "
3 : 5
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "11652"
["question_id"]=>
string(4) "2941"
["opt_desc"]=>
string(17) "
5 : 4
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2981"
["question_id"]=>
string(4) "2941"
["option_id"]=>
string(5) "11652"
}
}
}
[74]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "214"
["ques_text"]=>
string(395) "
The time period of a freely suspended magnet is 2 sec . If it is broken in length into two equal parts and one part is suspended in the same way, then its time period will be [MP PMT 1999]
"
["question_id"]=>
string(4) "2942"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "11653"
["question_id"]=>
string(4) "2942"
["opt_desc"]=>
string(26) "
4 sec
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "11654"
["question_id"]=>
string(4) "2942"
["opt_desc"]=>
string(26) "
2 sec
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "11655"
["question_id"]=>
string(4) "2942"
["opt_desc"]=>
string(123) "
2 s e c
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "11656"
["question_id"]=>
string(4) "2942"
["opt_desc"]=>
string(26) "
1 sec
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2982"
["question_id"]=>
string(4) "2942"
["option_id"]=>
string(5) "11656"
}
}
}
[75]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "214"
["ques_text"]=>
string(434) "
A magnet is suspended in such a way that it oscillates in the horizontal plane. It makes 20 oscillations per minute at a place where dip angle is 30o and 15 oscillations per minute at a place where dip angle is 60o . The ratio of total earth's magnetic field at the two places is
[MP PMT 1991; BHU 1997]
"
["question_id"]=>
string(4) "2943"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "11657"
["question_id"]=>
string(4) "2943"
["opt_desc"]=>
string(123) "
3 3 : 8
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "11658"
["question_id"]=>
string(4) "2943"
["opt_desc"]=>
string(124) "
16 : 9 3
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "11659"
["question_id"]=>
string(4) "2943"
["opt_desc"]=>
string(17) "
4 : 9
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "11660"
["question_id"]=>
string(4) "2943"
["opt_desc"]=>
string(123) "
2 3 : 9
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2983"
["question_id"]=>
string(4) "2943"
["option_id"]=>
string(5) "11658"
}
}
}
[76]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "214"
["ques_text"]=>
string(462) "
If θ 1 and θ 2 are the deflections obtained by placing small magnet on the arm of a deflection magnetometer at the same distance from the compass box in tan A and tan B positions of the magnetometer respectively then the value of tanθ1 /tanθ2 will be approximately
[MP PMT 1992]
"
["question_id"]=>
string(4) "2944"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "11661"
["question_id"]=>
string(4) "2944"
["opt_desc"]=>
string(13) "
1
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "11662"
["question_id"]=>
string(4) "2944"
["opt_desc"]=>
string(13) "
2
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "11663"
["question_id"]=>
string(4) "2944"
["opt_desc"]=>
string(15) "
1/2
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "11664"
["question_id"]=>
string(4) "2944"
["opt_desc"]=>
string(93) "
2
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "2984"
["question_id"]=>
string(4) "2944"
["option_id"]=>
string(5) "11661"
}
}
}
[77]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "216"
["ques_text"]=>
string(411) "
In vibration magnetometer the time period of suspended bar magnet can be reduced by [CBSE PMT 1999]
"
["question_id"]=>
string(4) "2965"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "11745"
["question_id"]=>
string(4) "2965"
["opt_desc"]=>
string(40) "
Moving it towards south pole
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "11746"
["question_id"]=>
string(4) "2965"
["opt_desc"]=>
string(40) "
Moving it towards north pole
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "11747"
["question_id"]=>
string(4) "2965"
["opt_desc"]=>
string(36) "
Moving it toward equator
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "11748"
["question_id"]=>
string(4) "2965"
["opt_desc"]=>
string(24) "
Any one them
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3005"
["question_id"]=>
string(4) "2965"
["option_id"]=>
string(5) "11747"
}
}
}
[78]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "216"
["ques_text"]=>
string(278) "
An iron rod of length L and magnetic moment M is bent in the form of a semicircle. Now its magnetic moment will be
[CPMT 1984; MP Board 1986; NCERT 1975; MP PET/PMT 1988; EAMCET (Med.) 1995;
"
["question_id"]=>
string(4) "2974"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "11781"
["question_id"]=>
string(4) "2974"
["opt_desc"]=>
string(13) "
M
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "11782"
["question_id"]=>
string(4) "2974"
["opt_desc"]=>
string(20) "
2M/ π
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "11783"
["question_id"]=>
string(4) "2974"
["opt_desc"]=>
string(18) "
M/π
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "11784"
["question_id"]=>
string(4) "2974"
["opt_desc"]=>
string(17) "
Mπ
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3014"
["question_id"]=>
string(4) "2974"
["option_id"]=>
string(5) "11782"
}
}
}
[79]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "224"
["ques_text"]=>
string(379) "
Two samples A and B of a gas initially at the same pressure and temperature are compressed from volume V to V /2 (A isothermally and B adiabatically). The final pressure of A is
[MP PET 1996, 99; MP PMT 1997, 99]
"
["question_id"]=>
string(4) "3091"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12249"
["question_id"]=>
string(4) "3091"
["opt_desc"]=>
string(57) "
Greater than the final pressure of B
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12250"
["question_id"]=>
string(4) "3091"
["opt_desc"]=>
string(53) "
Equal to the final pressure of B
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12251"
["question_id"]=>
string(4) "3091"
["opt_desc"]=>
string(54) "
Less than the final pressure of B
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12252"
["question_id"]=>
string(4) "3091"
["opt_desc"]=>
string(50) "
Twice the final pressure of B
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3131"
["question_id"]=>
string(4) "3091"
["option_id"]=>
string(5) "12251"
}
}
}
[80]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "224"
["ques_text"]=>
string(166) "
If the door of a refrigerator is kept open, then which of the following is true
[BHU 2001; JIPMER 2002; AIEEE 2002; CPMT 2003]
"
["question_id"]=>
string(4) "3095"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12265"
["question_id"]=>
string(4) "3095"
["opt_desc"]=>
string(26) "
Room is cooled
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12266"
["question_id"]=>
string(4) "3095"
["opt_desc"]=>
string(26) "
Room is heated
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12267"
["question_id"]=>
string(4) "3095"
["opt_desc"]=>
string(43) "
Room is either cooled or heated
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12268"
["question_id"]=>
string(4) "3095"
["opt_desc"]=>
string(45) "
Room is neither cooled nor heated
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3135"
["question_id"]=>
string(4) "3095"
["option_id"]=>
string(5) "12266"
}
}
}
[81]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "225"
["ques_text"]=>
string(185) "
A gas expands 0.25m3 at constant pressure 103 N/m2 , the work done is
[CPMT 1997; UPSEAT 1999; JIPMER 2001, 2002]
"
["question_id"]=>
string(4) "3101"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12289"
["question_id"]=>
string(4) "3101"
["opt_desc"]=>
string(29) "
2.5 ergs
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12290"
["question_id"]=>
string(4) "3101"
["opt_desc"]=>
string(26) "
250 J
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12291"
["question_id"]=>
string(4) "3101"
["opt_desc"]=>
string(26) "
250 W
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12292"
["question_id"]=>
string(4) "3101"
["opt_desc"]=>
string(26) "
250 N
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3141"
["question_id"]=>
string(4) "3101"
["option_id"]=>
string(5) "12290"
}
}
}
[82]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "226"
["ques_text"]=>
string(3143) "
A thermodynamic process is shown in the figure. The pressures and volumes corresponding to some points in the figure are: PA =3 x 104 Pa, PB =8 x104 Pa and VA = 2 x 10-3 m3 , VD =5 x 10-3 m3
In process AB , 600 J of heat is added to the system and in process BC , 200 J of heat is added to the system. The change in internal energy of the system in process AC would be [CBSE PMT 1992]
"
["question_id"]=>
string(4) "3112"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12333"
["question_id"]=>
string(4) "3112"
["opt_desc"]=>
string(26) "
560 J
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12334"
["question_id"]=>
string(4) "3112"
["opt_desc"]=>
string(26) "
800 J
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12335"
["question_id"]=>
string(4) "3112"
["opt_desc"]=>
string(26) "
600 J
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12336"
["question_id"]=>
string(4) "3112"
["opt_desc"]=>
string(26) "
640 J
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3152"
["question_id"]=>
string(4) "3112"
["option_id"]=>
string(5) "12333"
}
}
}
[83]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "227"
["ques_text"]=>
string(306) "
Beats are produced with the help of two sound waves on amplitude 3 and 5 units. The ratio of maximum to minimum intensity in the beats is [MP PMT 1999]
"
["question_id"]=>
string(4) "3116"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12349"
["question_id"]=>
string(4) "3116"
["opt_desc"]=>
string(17) "
2 : 1
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12350"
["question_id"]=>
string(4) "3116"
["opt_desc"]=>
string(17) "
5 : 3
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12351"
["question_id"]=>
string(4) "3116"
["opt_desc"]=>
string(17) "
4 : 1
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12352"
["question_id"]=>
string(4) "3116"
["opt_desc"]=>
string(18) "
16 : 1
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3156"
["question_id"]=>
string(4) "3116"
["option_id"]=>
string(5) "12352"
}
}
}
[84]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "227"
["ques_text"]=>
string(314) "
In stationary waves, antinodes are the points where there is [MP PMT 1996]
"
["question_id"]=>
string(4) "3118"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12357"
["question_id"]=>
string(4) "3118"
["opt_desc"]=>
string(60) "
Minimum displacement and minimum pressure change
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12358"
["question_id"]=>
string(4) "3118"
["opt_desc"]=>
string(60) "
Minimum displacement and maximum pressure change
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12359"
["question_id"]=>
string(4) "3118"
["opt_desc"]=>
string(60) "
Maximum displacement and maximum pressure change
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12360"
["question_id"]=>
string(4) "3118"
["opt_desc"]=>
string(60) "
Maximum displacement and minimum pressure change
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3158"
["question_id"]=>
string(4) "3118"
["option_id"]=>
string(5) "12360"
}
}
}
[85]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "226"
["ques_text"]=>
string(2826) "
In the following indicator diagram, the net amount of work done will be
"
["question_id"]=>
string(4) "3120"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12365"
["question_id"]=>
string(4) "3120"
["opt_desc"]=>
string(20) "
Positive
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12366"
["question_id"]=>
string(4) "3120"
["opt_desc"]=>
string(20) "
Negative
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12367"
["question_id"]=>
string(4) "3120"
["opt_desc"]=>
string(16) "
Zero
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12368"
["question_id"]=>
string(4) "3120"
["opt_desc"]=>
string(20) "
Infinity
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3160"
["question_id"]=>
string(4) "3120"
["option_id"]=>
string(5) "12366"
}
}
}
[86]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "226"
["ques_text"]=>
string(482) "
A Carnot engine working between 300 K and 600 K has work output of 800 J per cycle. What is amount of heat energy supplied to the engine from source per cycle [Pb. PMT 2002]
"
["question_id"]=>
string(4) "3121"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12369"
["question_id"]=>
string(4) "3121"
["opt_desc"]=>
string(33) "
1800 J /cycle
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12370"
["question_id"]=>
string(4) "3121"
["opt_desc"]=>
string(33) "
1000 J /cycle
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12371"
["question_id"]=>
string(4) "3121"
["opt_desc"]=>
string(33) "
2000 J /cycle
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12372"
["question_id"]=>
string(4) "3121"
["opt_desc"]=>
string(33) "
1600 J /cycle
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3161"
["question_id"]=>
string(4) "3121"
["option_id"]=>
string(5) "12372"
}
}
}
[87]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "226"
["ques_text"]=>
string(3212) "
Carnot cycle (reversible) of a gas represented by a Pressure-Volume curve is shown in the diagram
Consider the following statements
I. Area ABCD = Work done on the gas
II. Area ABCD = Net heat absorbed
III. Change in the internal energy in cycle = 0
Which of these are correct
"
["question_id"]=>
string(4) "3122"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12373"
["question_id"]=>
string(4) "3122"
["opt_desc"]=>
string(18) "
I only
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12374"
["question_id"]=>
string(4) "3122"
["opt_desc"]=>
string(19) "
II only
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12375"
["question_id"]=>
string(4) "3122"
["opt_desc"]=>
string(22) "
II and III
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12376"
["question_id"]=>
string(4) "3122"
["opt_desc"]=>
string(25) "
I, II and III
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3162"
["question_id"]=>
string(4) "3122"
["option_id"]=>
string(5) "12375"
}
}
}
[88]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "228"
["ques_text"]=>
string(3639) "
The P-V diagram shows seven curved paths (connected by vertical paths) that can be followed by a gas. Which two of them should be parts of a closed cycle if the net work done by the gas is to be at its maximum value
"
["question_id"]=>
string(4) "3131"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12409"
["question_id"]=>
string(4) "3131"
["opt_desc"]=>
string(23) "
ac
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12410"
["question_id"]=>
string(4) "3131"
["opt_desc"]=>
string(23) "
cg
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12411"
["question_id"]=>
string(4) "3131"
["opt_desc"]=>
string(23) "
af
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12412"
["question_id"]=>
string(4) "3131"
["opt_desc"]=>
string(23) "
cd
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3171"
["question_id"]=>
string(4) "3131"
["option_id"]=>
string(5) "12411"
}
}
}
[89]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "230"
["ques_text"]=>
string(4381) "
Four curves A , B , C and D are drawn in the adjoining figure for a given amount of gas. The curves which represent adiabatic and isothermal changes are
"
["question_id"]=>
string(4) "3158"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12517"
["question_id"]=>
string(4) "3158"
["opt_desc"]=>
string(50) "
C and D respectively
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12518"
["question_id"]=>
string(4) "3158"
["opt_desc"]=>
string(50) "
D and C respectively
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12519"
["question_id"]=>
string(4) "3158"
["opt_desc"]=>
string(50) "
A and B respectively
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12520"
["question_id"]=>
string(4) "3158"
["opt_desc"]=>
string(50) "
B and A respectively
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3198"
["question_id"]=>
string(4) "3158"
["option_id"]=>
string(5) "12519"
}
}
}
[90]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "230"
["ques_text"]=>
string(2778) "
In the following indicator diagram, the net amount of work done will be
"
["question_id"]=>
string(4) "3163"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12537"
["question_id"]=>
string(4) "3163"
["opt_desc"]=>
string(20) "
Positive
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12538"
["question_id"]=>
string(4) "3163"
["opt_desc"]=>
string(20) "
Negative
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12539"
["question_id"]=>
string(4) "3163"
["opt_desc"]=>
string(16) "
Zero
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12540"
["question_id"]=>
string(4) "3163"
["opt_desc"]=>
string(20) "
Infinity
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3203"
["question_id"]=>
string(4) "3163"
["option_id"]=>
string(5) "12538"
}
}
}
[91]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "227"
["ques_text"]=>
string(234) "
Which of the property makes difference between progressive and stationary waves [MP PMT1987]
"
["question_id"]=>
string(4) "3193"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12657"
["question_id"]=>
string(4) "3193"
["opt_desc"]=>
string(21) "
Amplitude
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12658"
["question_id"]=>
string(4) "3193"
["opt_desc"]=>
string(21) "
Frequency
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12659"
["question_id"]=>
string(4) "3193"
["opt_desc"]=>
string(33) "
Propagation of energy
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12660"
["question_id"]=>
string(4) "3193"
["opt_desc"]=>
string(29) "
Phase of the wave
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3233"
["question_id"]=>
string(4) "3193"
["option_id"]=>
string(5) "12659"
}
}
}
[92]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "227"
["ques_text"]=>
string(642) "
The superposition takes place between two waves of frequency f and amplitude a . The total intensity is directly proportional to [MP PMT 1986]
"
["question_id"]=>
string(4) "3194"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12661"
["question_id"]=>
string(4) "3194"
["opt_desc"]=>
string(22) "
a
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12662"
["question_id"]=>
string(4) "3194"
["opt_desc"]=>
string(23) "
2a
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12663"
["question_id"]=>
string(4) "3194"
["opt_desc"]=>
string(35) "
2a 2
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12664"
["question_id"]=>
string(4) "3194"
["opt_desc"]=>
string(35) "
4a 2
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3234"
["question_id"]=>
string(4) "3194"
["option_id"]=>
string(5) "12664"
}
}
}
[93]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "227"
["ques_text"]=>
string(362) "
The driver of car travelling with a speed 30 meter /sec . towards a hill sounds a horn of frequency 600 Hz . If the velocity of sound in air is 330 m/s the frequency of reflected sound as heard by the driver is [MP PMT 1996]
"
["question_id"]=>
string(4) "3197"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12673"
["question_id"]=>
string(4) "3197"
["opt_desc"]=>
string(27) "
720 Hz
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12674"
["question_id"]=>
string(4) "3197"
["opt_desc"]=>
string(29) "
555.5 Hz
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12675"
["question_id"]=>
string(4) "3197"
["opt_desc"]=>
string(27) "
550 Hz
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12676"
["question_id"]=>
string(4) "3197"
["opt_desc"]=>
string(27) "
500 Hz
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3237"
["question_id"]=>
string(4) "3197"
["option_id"]=>
string(5) "12673"
}
}
}
[94]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "227"
["ques_text"]=>
string(663) "
At what speed should a source of sound move so that observer finds the apparent frequency equal to half of the original frequency [RPMT 1996]
"
["question_id"]=>
string(4) "3198"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12677"
["question_id"]=>
string(4) "3198"
["opt_desc"]=>
string(26) "
v / 2
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12678"
["question_id"]=>
string(4) "3198"
["opt_desc"]=>
string(23) "
2v
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12679"
["question_id"]=>
string(4) "3198"
["opt_desc"]=>
string(26) "
v / 4
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12680"
["question_id"]=>
string(4) "3198"
["opt_desc"]=>
string(22) "
v
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3238"
["question_id"]=>
string(4) "3198"
["option_id"]=>
string(5) "12680"
}
}
}
[95]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "227"
["ques_text"]=>
string(489) "
The speed of a wave in a certain medium is 960 m /sec . If 3600 waves pass over a certain point of the medium in 1 minute, the wavelength is [MP PMT 2000]
"
["question_id"]=>
string(4) "3199"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12681"
["question_id"]=>
string(4) "3199"
["opt_desc"]=>
string(29) "
2 meters
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12682"
["question_id"]=>
string(4) "3199"
["opt_desc"]=>
string(29) "
4 meters
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12683"
["question_id"]=>
string(4) "3199"
["opt_desc"]=>
string(29) "
8 meters
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12684"
["question_id"]=>
string(4) "3199"
["opt_desc"]=>
string(30) "
16 meters
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3239"
["question_id"]=>
string(4) "3199"
["option_id"]=>
string(5) "12684"
}
}
}
[96]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "227"
["ques_text"]=>
string(376) "
In a stationary wave, all particles are [MP PMT 1994]
"
["question_id"]=>
string(4) "3201"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12689"
["question_id"]=>
string(4) "3201"
["opt_desc"]=>
string(73) "
At rest at the same time twice in every period of oscillation
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12690"
["question_id"]=>
string(4) "3201"
["opt_desc"]=>
string(77) "
At rest at the same time only once in every period of oscillation
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12691"
["question_id"]=>
string(4) "3201"
["opt_desc"]=>
string(42) "
Never at rest at the same time
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12692"
["question_id"]=>
string(4) "3201"
["opt_desc"]=>
string(32) "
Never at rest at all
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3241"
["question_id"]=>
string(4) "3201"
["option_id"]=>
string(5) "12689"
}
}
}
[97]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "227"
["ques_text"]=>
string(693) "
The equation of wave is y = 2 sin π(0.5x – 200 t) where x and y are expressed in cm and t in sec . The wave velocity is [MP PMT 1986]
"
["question_id"]=>
string(4) "3204"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12701"
["question_id"]=>
string(4) "3204"
["opt_desc"]=>
string(40) "
100 cm /sec
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12702"
["question_id"]=>
string(4) "3204"
["opt_desc"]=>
string(40) "
200 cm /sec
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12703"
["question_id"]=>
string(4) "3204"
["opt_desc"]=>
string(40) "
300 cm /sec
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12704"
["question_id"]=>
string(4) "3204"
["opt_desc"]=>
string(40) "
400 cm /sec
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3244"
["question_id"]=>
string(4) "3204"
["option_id"]=>
string(5) "12704"
}
}
}
[98]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "233"
["ques_text"]=>
string(855) "
A simple harmonic progressive wave is represented by the equation y = 8 sin 2π (0.1x – 2t ) where x and y are in cm and t is in seconds. At any instant the Phase difference between two particles separated by 2.0 cm in the x -direction is [MP PMT 2000]
"
["question_id"]=>
string(4) "3205"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12705"
["question_id"]=>
string(4) "3205"
["opt_desc"]=>
string(19) "
18°
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12706"
["question_id"]=>
string(4) "3205"
["opt_desc"]=>
string(19) "
36°
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12707"
["question_id"]=>
string(4) "3205"
["opt_desc"]=>
string(19) "
54°
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12708"
["question_id"]=>
string(4) "3205"
["opt_desc"]=>
string(19) "
72°
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3245"
["question_id"]=>
string(4) "3205"
["option_id"]=>
string(5) "12708"
}
}
}
[99]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "233"
["ques_text"]=>
string(310) "
The displacement of a particle is given by x = 3 sin (5πt) + 4 cos (5πt) The amplitude of particle is [MP PMT 1999]
"
["question_id"]=>
string(4) "3206"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12709"
["question_id"]=>
string(4) "3206"
["opt_desc"]=>
string(13) "
3
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12710"
["question_id"]=>
string(4) "3206"
["opt_desc"]=>
string(13) "
4
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12711"
["question_id"]=>
string(4) "3206"
["opt_desc"]=>
string(13) "
5
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12712"
["question_id"]=>
string(4) "3206"
["opt_desc"]=>
string(13) "
7
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3246"
["question_id"]=>
string(4) "3206"
["option_id"]=>
string(5) "12711"
}
}
}
[100]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "233"
["ques_text"]=>
string(466) "
The path difference between the two waves
y1 = a1 sin (ωt – (2πx/ λ)) and y2 = a2 cos (ωt – (2πx/ λ) + φ) is [MP PMT 1994]
"
["question_id"]=>
string(4) "3208"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12717"
["question_id"]=>
string(4) "3208"
["opt_desc"]=>
string(35) "
(λ /2φ)φ
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12718"
["question_id"]=>
string(4) "3208"
["opt_desc"]=>
string(47) "
(λ /2π)(φ + (π/2))
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12719"
["question_id"]=>
string(4) "3208"
["opt_desc"]=>
string(48) "
(2π/ λ) (φ + (π/2))
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12720"
["question_id"]=>
string(4) "3208"
["opt_desc"]=>
string(37) "
(2π/ λ) (φ)
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3248"
["question_id"]=>
string(4) "3208"
["option_id"]=>
string(5) "12718"
}
}
}
[101]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "233"
["ques_text"]=>
string(456) "
The stationary wave produced on a string is represented by the equation y = 5 cos(πx/3) sin (40 πt) where x and y are in cm and t is in seconds. The distance between consecutive nodes is [MP PMT 2000]
"
["question_id"]=>
string(4) "3211"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12729"
["question_id"]=>
string(4) "3211"
["opt_desc"]=>
string(25) "
5 cm
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12730"
["question_id"]=>
string(4) "3211"
["opt_desc"]=>
string(28) "
π cm
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12731"
["question_id"]=>
string(4) "3211"
["opt_desc"]=>
string(25) "
3 cm
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12732"
["question_id"]=>
string(4) "3211"
["opt_desc"]=>
string(26) "
40 cm
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3251"
["question_id"]=>
string(4) "3211"
["option_id"]=>
string(5) "12731"
}
}
}
[102]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "233"
["ques_text"]=>
string(344) "
41 forks are so arranged that each produces 5 beat/sec when sounded with its near fork. If the frequency of last fork is double the frequency of first fork, then the frequencies of the first and last fork respectively [MP PMT 1997]
"
["question_id"]=>
string(4) "3212"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12733"
["question_id"]=>
string(4) "3212"
["opt_desc"]=>
string(20) "
200, 400
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12734"
["question_id"]=>
string(4) "3212"
["opt_desc"]=>
string(20) "
205, 410
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12735"
["question_id"]=>
string(4) "3212"
["opt_desc"]=>
string(20) "
195, 390
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12736"
["question_id"]=>
string(4) "3212"
["opt_desc"]=>
string(20) "
100, 200
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3252"
["question_id"]=>
string(4) "3212"
["option_id"]=>
string(5) "12733"
}
}
}
[103]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "233"
["ques_text"]=>
string(411) "
If two waves of same frequency and same amplitude respectively on superimposition produced a resultant disturbance of the same amplitude the wave differ in phase by [MP PMT 1990]
"
["question_id"]=>
string(4) "3214"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12741"
["question_id"]=>
string(4) "3214"
["opt_desc"]=>
string(16) "
π
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12742"
["question_id"]=>
string(4) "3214"
["opt_desc"]=>
string(19) "
2π/3
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12743"
["question_id"]=>
string(4) "3214"
["opt_desc"]=>
string(18) "
π/2
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12744"
["question_id"]=>
string(4) "3214"
["opt_desc"]=>
string(16) "
zero
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3254"
["question_id"]=>
string(4) "3214"
["option_id"]=>
string(5) "12742"
}
}
}
[104]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "233"
["ques_text"]=>
string(429) "
The tuning fork and sonometer wire were sounded together and produce 4 beats/second when the length of sonometer wire is 95 cm or 100 cm . The frequency of tuning fork is [MP PMT 1990]
"
["question_id"]=>
string(4) "3215"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12745"
["question_id"]=>
string(4) "3215"
["opt_desc"]=>
string(27) "
156 Hz
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12746"
["question_id"]=>
string(4) "3215"
["opt_desc"]=>
string(27) "
152 Hz
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12747"
["question_id"]=>
string(4) "3215"
["opt_desc"]=>
string(27) "
148 Hz
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12748"
["question_id"]=>
string(4) "3215"
["opt_desc"]=>
string(27) "
160 Hz
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3255"
["question_id"]=>
string(4) "3215"
["option_id"]=>
string(5) "12745"
}
}
}
[105]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "233"
["ques_text"]=>
string(459) "
A source of sound of frequency 90 vibration /sec is approaching a stationary observer with a speed equal to 1/10 the speed of sound. What will be the frequency heard by the observer [MP PMT 2000]
"
["question_id"]=>
string(4) "3216"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12749"
["question_id"]=>
string(4) "3216"
["opt_desc"]=>
string(46) "
80 vibration /sec
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12750"
["question_id"]=>
string(4) "3216"
["opt_desc"]=>
string(46) "
90 vibration /sec
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12751"
["question_id"]=>
string(4) "3216"
["opt_desc"]=>
string(47) "
100 vibration /sec
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12752"
["question_id"]=>
string(4) "3216"
["opt_desc"]=>
string(47) "
120 vibration /sec
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3256"
["question_id"]=>
string(4) "3216"
["option_id"]=>
string(5) "12751"
}
}
}
[106]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "233"
["ques_text"]=>
string(394) "
The source of sound s is moving with a velocity 50 m /s towards a stationary observer. The observer measures the frequency of the source as 1000 Hz . What will be the apparent frequency of the source when it is moving away from the observer after crossing him ? The velocity of sound in the medium is 350 m /s [MP PMT 1994]
"
["question_id"]=>
string(4) "3217"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12753"
["question_id"]=>
string(4) "3217"
["opt_desc"]=>
string(27) "
750 Hz
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12754"
["question_id"]=>
string(4) "3217"
["opt_desc"]=>
string(27) "
857 Hz
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12755"
["question_id"]=>
string(4) "3217"
["opt_desc"]=>
string(28) "
1143 Hz
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12756"
["question_id"]=>
string(4) "3217"
["opt_desc"]=>
string(28) "
1333 Hz
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3257"
["question_id"]=>
string(4) "3217"
["option_id"]=>
string(5) "12753"
}
}
}
[107]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "233"
["ques_text"]=>
string(657) "
A man is watching two trains, one leaving and the other coming in with equal speed of 4 m /s . If they sound their whistles, each of frequency 240 Hz , the number of beats heard by the man (velocity of sound in air = 320 m /s ) will be equal to [MP PET 1999; CPMT 1997; NCERT 1984]
"
["question_id"]=>
string(4) "3218"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12757"
["question_id"]=>
string(4) "3218"
["opt_desc"]=>
string(13) "
6
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12758"
["question_id"]=>
string(4) "3218"
["opt_desc"]=>
string(13) "
3
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12759"
["question_id"]=>
string(4) "3218"
["opt_desc"]=>
string(13) "
0
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12760"
["question_id"]=>
string(4) "3218"
["opt_desc"]=>
string(14) "
12
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3258"
["question_id"]=>
string(4) "3218"
["option_id"]=>
string(5) "12757"
}
}
}
[108]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "233"
["ques_text"]=>
string(433) "
Two tuning forks have frequencies 380 and 384 hertz respectively. When they are sounded together, they produce 4 beats. After hearing the maximum sound, how long will it take to hear the minimum sound [MP PMT/PET 1998]
"
["question_id"]=>
string(4) "3219"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12761"
["question_id"]=>
string(4) "3219"
["opt_desc"]=>
string(19) "
1/2 sec
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12762"
["question_id"]=>
string(4) "3219"
["opt_desc"]=>
string(28) "
1/4 sec
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12763"
["question_id"]=>
string(4) "3219"
["opt_desc"]=>
string(28) "
1/8 sec
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12764"
["question_id"]=>
string(4) "3219"
["opt_desc"]=>
string(29) "
1/16 sec
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3259"
["question_id"]=>
string(4) "3219"
["option_id"]=>
string(5) "12763"
}
}
}
[109]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "237"
["ques_text"]=>
string(465) "
At constant volume the specific heat of a gas is 3R/2, then the value of γ will be [DPMT 1999]
"
["question_id"]=>
string(4) "3265"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "12945"
["question_id"]=>
string(4) "3265"
["opt_desc"]=>
string(15) "
3/2
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "12946"
["question_id"]=>
string(4) "3265"
["opt_desc"]=>
string(15) "
5/2
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "12947"
["question_id"]=>
string(4) "3265"
["opt_desc"]=>
string(15) "
5/3
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "12948"
["question_id"]=>
string(4) "3265"
["opt_desc"]=>
string(29) "
None of the above
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3305"
["question_id"]=>
string(4) "3265"
["option_id"]=>
string(5) "12947"
}
}
}
[110]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "238"
["ques_text"]=>
string(342) "
Find the ratio of specific heat at constant pressure to the specific heat constant volume for NH3 [RPMT 2003]
"
["question_id"]=>
string(4) "3286"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "13029"
["question_id"]=>
string(4) "3286"
["opt_desc"]=>
string(16) "
1.33
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "13030"
["question_id"]=>
string(4) "3286"
["opt_desc"]=>
string(16) "
1.44
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "13031"
["question_id"]=>
string(4) "3286"
["opt_desc"]=>
string(16) "
1.28
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "13032"
["question_id"]=>
string(4) "3286"
["opt_desc"]=>
string(16) "
1.67
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3326"
["question_id"]=>
string(4) "3286"
["option_id"]=>
string(5) "13031"
}
}
}
[111]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "238"
["ques_text"]=>
string(562) "
If the intermolecular forces vanish away, the volume occupied by the molecules contained in 4.5 kg water at standard temperature and pressure will be given by
[CPMT 1989]
"
["question_id"]=>
string(4) "3294"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "13061"
["question_id"]=>
string(4) "3294"
["opt_desc"]=>
string(29) "
5.6 m3
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "13062"
["question_id"]=>
string(4) "3294"
["opt_desc"]=>
string(29) "
4.5 m3
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "13063"
["question_id"]=>
string(4) "3294"
["opt_desc"]=>
string(22) "
11.2 litre
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "13064"
["question_id"]=>
string(4) "3294"
["opt_desc"]=>
string(30) "
11.2 m3
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3334"
["question_id"]=>
string(4) "3294"
["option_id"]=>
string(5) "13061"
}
}
}
[112]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "239"
["ques_text"]=>
string(554) "
The temperature of a gas is raised while its volume remains constant, the pressure exerted by a gas on the walls of the container increases because its molecules
[CBSE PMT 1993]
"
["question_id"]=>
string(4) "3297"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "13073"
["question_id"]=>
string(4) "3297"
["opt_desc"]=>
string(48) "
Lose more kinetic energy to the wall
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "13074"
["question_id"]=>
string(4) "3297"
["opt_desc"]=>
string(59) "
Are in contact with the wall for a shorter time
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "13075"
["question_id"]=>
string(4) "3297"
["opt_desc"]=>
string(61) "
Strike the wall more often with higher velocities
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "13076"
["question_id"]=>
string(4) "3297"
["opt_desc"]=>
string(50) "
Collide with each other less frequency
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3337"
["question_id"]=>
string(4) "3297"
["option_id"]=>
string(5) "13075"
}
}
}
[113]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "240"
["ques_text"]=>
string(826) "
A box containing N molecules of a perfect gas at temperature T1 and pressure P1 . The number of molecules in the box is doubled keeping the total kinetic energy of the gas same as before. If the new pressure is P2 and temperature T2 , then [MP PMT 1992]
"
["question_id"]=>
string(4) "3302"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "13093"
["question_id"]=>
string(4) "3302"
["opt_desc"]=>
string(68) "
P2 =P1 , T2 =T1
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "13094"
["question_id"]=>
string(4) "3302"
["opt_desc"]=>
string(70) "
P2 =P1 , T2 =T1 /2
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "13095"
["question_id"]=>
string(4) "3302"
["opt_desc"]=>
string(69) "
P2 =2P1 , T2 =T1
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "13096"
["question_id"]=>
string(4) "3302"
["opt_desc"]=>
string(71) "
P2 =2P1 , T2 =T1 /2
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3342"
["question_id"]=>
string(4) "3302"
["option_id"]=>
string(5) "13094"
}
}
}
[114]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "241"
["ques_text"]=>
string(275) "
22 gm of CO2 at 27°C is mixed with 16 gm of O2 at 37°C . The temperature of the mixture is [CBSE PMT 1995]
"
["question_id"]=>
string(4) "3317"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "13153"
["question_id"]=>
string(4) "3317"
["opt_desc"]=>
string(29) "
32°C
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "13154"
["question_id"]=>
string(4) "3317"
["opt_desc"]=>
string(29) "
27°C
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "13155"
["question_id"]=>
string(4) "3317"
["opt_desc"]=>
string(29) "
37°C
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "13156"
["question_id"]=>
string(4) "3317"
["opt_desc"]=>
string(31) "
30.5°C
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3357"
["question_id"]=>
string(4) "3317"
["option_id"]=>
string(5) "13153"
}
}
}
[115]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "241"
["ques_text"]=>
string(672) "
Read the given statements and decide which is/are correct on the basis of kinetic theory of gases [MP PMT 2003]
(I) Energy of one molecule at absolute temperature is zero
(II) rms speeds of different gases are same at same temperature
(III) For one gram of all ideal gas kinetic energy is same at same temperature
(IV) For one mole of all ideal gases mean kinetic energy is same at same temperature
"
["question_id"]=>
string(4) "3324"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "13181"
["question_id"]=>
string(4) "3324"
["opt_desc"]=>
string(27) "
All are correct
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "13182"
["question_id"]=>
string(4) "3324"
["opt_desc"]=>
string(32) "
I and IV are correct
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "13183"
["question_id"]=>
string(4) "3324"
["opt_desc"]=>
string(25) "
IV is correct
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "13184"
["question_id"]=>
string(4) "3324"
["opt_desc"]=>
string(25) "
None of these
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3364"
["question_id"]=>
string(4) "3324"
["option_id"]=>
string(5) "13183"
}
}
}
[116]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "241"
["ques_text"]=>
string(4186) "
An experiment is carried on a fixed amount of gas at different temperatures and at high pressure such that it deviates from the ideal gas behaviour. The variation of PV/RT with P is shown in the diagram. The correct variation will correspond to [CPMT 1988]
"
["question_id"]=>
string(4) "3327"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "13193"
["question_id"]=>
string(4) "3327"
["opt_desc"]=>
string(28) "
Curve A
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "13194"
["question_id"]=>
string(4) "3327"
["opt_desc"]=>
string(28) "
Curve B
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "13195"
["question_id"]=>
string(4) "3327"
["opt_desc"]=>
string(28) "
Curve C
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "13196"
["question_id"]=>
string(4) "3327"
["opt_desc"]=>
string(28) "
Curve D
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3367"
["question_id"]=>
string(4) "3327"
["option_id"]=>
string(5) "13194"
}
}
}
[117]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "241"
["ques_text"]=>
string(6407) "
At the top of a mountain a thermometer reads 7°C and a barometer reads 70 cm of Hg . At the bottom of the mountain these read 27°C and 76 cm of Hg respectively. Comparison of density of air at the top with that of bottom is
"
["question_id"]=>
string(4) "3329"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "13201"
["question_id"]=>
string(4) "3329"
["opt_desc"]=>
string(17) "
75/76
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "13202"
["question_id"]=>
string(4) "3329"
["opt_desc"]=>
string(17) "
70/76
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "13203"
["question_id"]=>
string(4) "3329"
["opt_desc"]=>
string(17) "
76/75
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "13204"
["question_id"]=>
string(4) "3329"
["opt_desc"]=>
string(17) "
76/70
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3369"
["question_id"]=>
string(4) "3329"
["option_id"]=>
string(5) "13201"
}
}
}
[118]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "251"
["ques_text"]=>
string(412) "
One sphere collides with another sphere of same mass at rest inelastically. If the value of coefficient of restitution is 1/2, the ratio of their speeds after collision shall be [RPMT 1998]
"
["question_id"]=>
string(4) "3488"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "13837"
["question_id"]=>
string(4) "3488"
["opt_desc"]=>
string(17) "
1 : 2
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "13838"
["question_id"]=>
string(4) "3488"
["opt_desc"]=>
string(17) "
2 : 1
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "13839"
["question_id"]=>
string(4) "3488"
["opt_desc"]=>
string(17) "
1 : 3
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "13840"
["question_id"]=>
string(4) "3488"
["opt_desc"]=>
string(17) "
3 : 1
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3533"
["question_id"]=>
string(4) "3488"
["option_id"]=>
string(5) "13839"
}
}
}
[119]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "253"
["ques_text"]=>
string(433) "
A running man has half the kinetic energy of that of a boy of half of his mass. The man speeds up by 1 m/s so as to have same K.E. as that of boy. The original speed of the man will be
[Pb. PMT 2001]
"
["question_id"]=>
string(4) "3518"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "13957"
["question_id"]=>
string(4) "3518"
["opt_desc"]=>
string(123) "
2 m / s
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "13958"
["question_id"]=>
string(4) "3518"
["opt_desc"]=>
string(190) "
2 - 1 m / s
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "13959"
["question_id"]=>
string(4) "3518"
["opt_desc"]=>
string(215) "
1 2 - 1 m / s
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "13960"
["question_id"]=>
string(4) "3518"
["opt_desc"]=>
string(284) "
1 2 m / s 1 2 m / s
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3564"
["question_id"]=>
string(4) "3518"
["option_id"]=>
string(5) "13959"
}
}
}
[120]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "254"
["ques_text"]=>
string(366) "
A neutron having mass of 1.67 x 10-27 kg and moving at 108 m/s collides with a deutron at rest and sticks to it. If the mass of the deutron is 3.34 x 10-27 kg; the speed of the combination is [CBSE PMT 2000]
"
["question_id"]=>
string(4) "3527"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "13993"
["question_id"]=>
string(4) "3527"
["opt_desc"]=>
string(39) "
2.56 x 10-27 m/s
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "13994"
["question_id"]=>
string(4) "3527"
["opt_desc"]=>
string(39) "
2.98 x 10-27 m/s
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "13995"
["question_id"]=>
string(4) "3527"
["opt_desc"]=>
string(38) "
3.33 x 10-7 m/s
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "13996"
["question_id"]=>
string(4) "3527"
["opt_desc"]=>
string(38) "
5.01 x 10-9 m/s
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3573"
["question_id"]=>
string(4) "3527"
["option_id"]=>
string(5) "13995"
}
}
}
[121]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "255"
["ques_text"]=>
string(8674) "
Two carts on horizontal straight rails are pushed apart by an explosion of a powder charge Q placed between the carts. Suppose the coefficients of friction between the carts and rails are identical. If the 200 kg cart travels a distance of 36 metres and stops, the distance covered by the cart weighing 300 kg is [CPMT 1989]
"
["question_id"]=>
string(4) "3536"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "14029"
["question_id"]=>
string(4) "3536"
["opt_desc"]=>
string(30) "
32 metres
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "14030"
["question_id"]=>
string(4) "3536"
["opt_desc"]=>
string(30) "
24 metres
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "14031"
["question_id"]=>
string(4) "3536"
["opt_desc"]=>
string(30) "
16 metres
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "14032"
["question_id"]=>
string(4) "3536"
["opt_desc"]=>
string(30) "
12 metres
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3582"
["question_id"]=>
string(4) "3536"
["option_id"]=>
string(5) "14031"
}
}
}
[122]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "255"
["ques_text"]=>
string(2891) "
A metre stick, of mass 400 g , is pivoted at one end displaced through an angle 60o . The increase in its potential energy is
"
["question_id"]=>
string(4) "3541"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "14049"
["question_id"]=>
string(4) "3541"
["opt_desc"]=>
string(24) "
1 J
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "14050"
["question_id"]=>
string(4) "3541"
["opt_desc"]=>
string(25) "
10 J
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "14051"
["question_id"]=>
string(4) "3541"
["opt_desc"]=>
string(26) "
100 J
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "14052"
["question_id"]=>
string(4) "3541"
["opt_desc"]=>
string(27) "
1000 J
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3589"
["question_id"]=>
string(4) "3541"
["option_id"]=>
string(5) "14049"
}
}
}
[123]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "255"
["ques_text"]=>
string(349) "
A rubber ball is dropped from a height of 5m on a planet where the acceleration due to gravity is not known. On bouncing, it rises to 1.8 m. The ball loses its velocity on bouncing by a factor of [CBSE PMT 1998]
"
["question_id"]=>
string(4) "3543"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "14057"
["question_id"]=>
string(4) "3543"
["opt_desc"]=>
string(17) "
16/25
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "14058"
["question_id"]=>
string(4) "3543"
["opt_desc"]=>
string(15) "
2/5
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "14059"
["question_id"]=>
string(4) "3543"
["opt_desc"]=>
string(15) "
3/5
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "14060"
["question_id"]=>
string(4) "3543"
["opt_desc"]=>
string(16) "
9/25
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3591"
["question_id"]=>
string(4) "3543"
["option_id"]=>
string(5) "14059"
}
}
}
[124]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "255"
["ques_text"]=>
string(2622) "
The relationship between force and position is shown in the figure given (in one dimensional case). The work done by the force in displacing a body from x=1 cm to x= 5 cm is [CPMT 1976]
"
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string(4) "3545"
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20 ergs
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60 ergs
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string(5) "14067"
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string(4) "3545"
["opt_desc"]=>
string(28) "
70 ergs
"
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[3]=>
array(3) {
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string(5) "14068"
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string(4) "3545"
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700 ergs
"
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["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3593"
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string(4) "3545"
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[125]=>
array(3) {
["Question"]=>
array(3) {
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["ques_text"]=>
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Three particles A , B and C of equal mass are moving with the same velocity v along the medians of an equilateral triangle. These particle collide at the centre G of triangle. After collision A becomes stationary, B retraces its path with velocity v then the magnitude and direction of velocity of C will be
"
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v and opposite to B
"
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v and in the direction of A
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string(5) "14071"
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v and in the direction of C
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string(5) "14072"
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v and in the direction of B
"
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["Answer"]=>
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string(4) "3594"
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string(4) "3546"
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string(5) "14072"
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[126]=>
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["ques_text"]=>
string(8771) "
A sphere of mass 0.1 kg is attached to a cord of 1m length. Starting from the height of its point of suspension this sphere hits a block of same mass at rest on a frictionless table, If the impact is elastic, then the kinetic energy of the block after the collision is [RPET 1991]
"
["question_id"]=>
string(4) "3554"
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[0]=>
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["option_id"]=>
string(5) "14101"
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1 J
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "14102"
["question_id"]=>
string(4) "3554"
["opt_desc"]=>
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10 J
"
}
[2]=>
array(3) {
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string(5) "14103"
["question_id"]=>
string(4) "3554"
["opt_desc"]=>
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0.1 J
"
}
[3]=>
array(3) {
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string(5) "14104"
["question_id"]=>
string(4) "3554"
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0.5 J
"
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}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3602"
["question_id"]=>
string(4) "3554"
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[127]=>
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A body of mass m moving with velocity v makes a head-on collision with another body of mass 2m which is initially at rest. The loss of kinetic energy of the colliding body (mass m ) is [MP PMT 1996; RPET 1999; AIIMS 2003]
"
["question_id"]=>
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["Option"]=>
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[0]=>
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1/2 of its initial kinetic energy
"
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[1]=>
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string(5) "14110"
["question_id"]=>
string(4) "3556"
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1/9 of its initial kinetic energy
"
}
[2]=>
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string(5) "14111"
["question_id"]=>
string(4) "3556"
["opt_desc"]=>
string(45) "
8/9 of its initial kinetic energy
"
}
[3]=>
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string(5) "14112"
["question_id"]=>
string(4) "3556"
["opt_desc"]=>
string(45) "
1/4 of its initial kinetic energy
"
}
}
["Answer"]=>
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[0]=>
array(3) {
["answer_id"]=>
string(4) "3604"
["question_id"]=>
string(4) "3556"
["option_id"]=>
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}
}
[128]=>
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["ques_text"]=>
string(330) "
A mass of 20kg moving with a speed of 10m/s collides with another stationary mass of 5 kg . As a result of the collision, the two masses stick together. The kinetic energy of the composite mass will be
[MP PMT 2000]
"
["question_id"]=>
string(4) "3560"
}
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[0]=>
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["option_id"]=>
string(5) "14125"
["question_id"]=>
string(4) "3560"
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string(26) "
600 J
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "14126"
["question_id"]=>
string(4) "3560"
["opt_desc"]=>
string(26) "
800 J
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "14127"
["question_id"]=>
string(4) "3560"
["opt_desc"]=>
string(27) "
1000 J
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "14128"
["question_id"]=>
string(4) "3560"
["opt_desc"]=>
string(27) "
1200 J
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3608"
["question_id"]=>
string(4) "3560"
["option_id"]=>
string(5) "14126"
}
}
}
[129]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "257"
["ques_text"]=>
string(3723) "
A bullet of mass m moving with a velocity v strikes a suspended wooden block of mass M as shown in the figure and sticks to it. If the block rises to a height h the initial velocity of the bullet is
[MP PMT 1997]
"
["question_id"]=>
string(4) "3566"
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array(4) {
[0]=>
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["option_id"]=>
string(5) "14149"
["question_id"]=>
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["opt_desc"]=>
string(183) "
( m + M / m ) 2 g h
"
}
[1]=>
array(3) {
["option_id"]=>
string(5) "14150"
["question_id"]=>
string(4) "3566"
["opt_desc"]=>
string(113) "
2 g h
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "14151"
["question_id"]=>
string(4) "3566"
["opt_desc"]=>
string(183) "
( M + m / M ) 2 g h
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "14152"
["question_id"]=>
string(4) "3566"
["opt_desc"]=>
string(173) "
m / M + m ) 2 g h
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3614"
["question_id"]=>
string(4) "3566"
["option_id"]=>
string(5) "14149"
}
}
}
[130]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "257"
["ques_text"]=>
string(473) "
A bag P (mass M ) hangs by a long thread and a bullet (mass m ) comes horizontally with velocity v and gets caught in the bag. Then for the combined (beg + bullet) system the [CPMT 1989]
"
["question_id"]=>
string(4) "3569"
}
["Option"]=>
array(4) {
[0]=>
array(3) {
["option_id"]=>
string(5) "14161"
["question_id"]=>
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["opt_desc"]=>
string(31) "
Momentum is mvM/M+m
"
}
[1]=>
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["option_id"]=>
string(5) "14162"
["question_id"]=>
string(4) "3569"
["opt_desc"]=>
string(43) "
Kinetic energy Mv2 /2
"
}
[2]=>
array(3) {
["option_id"]=>
string(5) "14163"
["question_id"]=>
string(4) "3569"
["opt_desc"]=>
string(33) "
Momentum is mv(M+m)/M
"
}
[3]=>
array(3) {
["option_id"]=>
string(5) "14164"
["question_id"]=>
string(4) "3569"
["opt_desc"]=>
string(63) "
Kinetic energy is m2 v2 /2(M+m)
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3617"
["question_id"]=>
string(4) "3569"
["option_id"]=>
string(5) "14164"
}
}
}
[131]=>
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["Question"]=>
array(3) {
["test_id"]=>
string(3) "275"
["ques_text"]=>
string(2894) "
In the following circuit E 1 = 4V , R 1 = 2W
E 2 = 6V , R 2 = 2? and R 3 = 4?. The current i 1 is
"
["question_id"]=>
string(4) "3792"
}
["Option"]=>
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[0]=>
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["option_id"]=>
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1.6 A
"
}
[1]=>
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string(5) "15051"
["question_id"]=>
string(4) "3792"
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1.8 A
"
}
[2]=>
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string(5) "15052"
["question_id"]=>
string(4) "3792"
["opt_desc"]=>
string(27) "
2.25 A
"
}
[3]=>
array(3) {
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string(5) "15053"
["question_id"]=>
string(4) "3792"
["opt_desc"]=>
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1 A
"
}
}
["Answer"]=>
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[0]=>
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["answer_id"]=>
string(4) "3841"
["question_id"]=>
string(4) "3792"
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string(5) "15051"
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}
[132]=>
array(3) {
["Question"]=>
array(3) {
["test_id"]=>
string(3) "278"
["ques_text"]=>
string(4502) "
In the circuit shown in the figure, the current through
"
["question_id"]=>
string(4) "3831"
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[0]=>
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The 3 ? resistor is 0.5 A
"
}
[1]=>
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string(5) "15207"
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string(4) "3831"
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The 3 ?resistor is 0.25 A
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}
[2]=>
array(3) {
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string(5) "15208"
["question_id"]=>
string(4) "3831"
["opt_desc"]=>
string(46) "
The 4 ? resistor is 0.5 A
"
}
[3]=>
array(3) {
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string(5) "15209"
["question_id"]=>
string(4) "3831"
["opt_desc"]=>
string(47) "
The 4 ? resistor is 0.25 A
"
}
}
["Answer"]=>
array(1) {
[0]=>
array(3) {
["answer_id"]=>
string(4) "3880"
["question_id"]=>
string(4) "3831"
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string(5) "15209"
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}
[133]=>
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array(3) {
["test_id"]=>
string(3) "290"
["ques_text"]=>
string(2929) "
Current in the circuit will be
"
["question_id"]=>
string(4) "3992"
}
["Option"]=>
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[0]=>
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5 40 A
"
}
[1]=>
array(3) {
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string(5) "15851"
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string(4) "3992"
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5 50 A
"
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string(5) "15852"
["question_id"]=>
string(4) "3992"
["opt_desc"]=>
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5 10 A
"
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[3]=>
array(3) {
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string(5) "15853"
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string(4) "3992"
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5 20 A
"
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["Answer"]=>
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["answer_id"]=>
string(4) "4041"
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PMT|Sureden:Your Education Partner
System of units : A complete set of units, both fundamental and derived for all kinds of physical quantities is called system of units. The common systems are given below
(1) CGS system : The system is also called Gaussian system of units. In
System of units : A complete set of units, both fundamental and derived for all kinds of physical quantities is called system of units. The common systems are given below
(1) CGS system : The system is also called Gaussian system of units. In it length, mass
Faraday connected a coil to a galvanometer and brought a magnet close to the coil or took it away form the coil. In both the case he observed deflection in the galvanometer.
EMF can be induced by every that mean is which flux linked with the conductor became varying.
EMF induced in a straight conductor moving in the magnetic field.
φ =BA
Whenever a large conductor i.e. 2 dimension or 3 dimension conductor in placed in varying magnetic field an EMF is induced in it due to the find closed paths within concentric circular currents known as eddy currents.
Eddy currents by nature are con
Coordination id the act of making different organs of body to work together to produce an effect in body, and our body need such control and coordination of all organs to prod
Consider a coil connected to a battery through a key. When the circuit is switched on the current starts growing through the coil and very soon acquires its maximum value. Duri
Whenever the primary circuit is switched on or off deflection is observed in the secondary circuit. At the time of switching on or the circuit the current in primary various wh
The study of nervous system in all aspects id called neurology.
Nervous tissue :- It fours the nervous system in animals.
It has 2 main parts : CNS and PNS.
(A) CNS (central nervous system ):-it has further 2 parts brain and spin
It is divided into 2 parts : (1.1) Brain and (1.2) spinal cord.
(1.1)
It is located in the vertebral canal of vertebral column and 45 cm long. It extends from upper level of atlas its first lumber vertebral of vertebral column. Spinal cord is al
The nerves that arise from or join brain. In human being, these are 12 pairs of Cranial nerves.
they arise from spinal cord in human being, these are 31 pairs of spinal nerves. Divided into 5 pairs.
(1)&n
Animals show 2 types of actions :-
Any substance such as acetylcholine or dopamine, responsible for sending nerve signals.
Synapse:- the function between the end of one neuron a
(1) Poliomyelitis:- A cute infection by poliovirus, especially in spinal cord and brainstem, causing muscle weakness, paraly
Sensory system consists of simple to complex structure called sensory receptors.
Simple sensory receptors ore called primary sense cell.
More c
There is a pair of ears to hear. They are located on sides of head. Study of ear in all aspects is called otology.
Ear shows 3 parts :-
The act of changing place either by full body or by one or more of body parts is called movement. Study of movements is called Kinesiology.
muscular :-
(that involves muscles mostly occur at cellular level o
It is a device which works on AC. It is used to increase as decrease the magnitude of alternate voltage as alternating current.
Principle :-
A pair of eyes are organs of sight. Ophthalmology is the study of structure, function and disease of rye. They are located in orbits (bony cavities). Of skull.
Ideal gas :- it is that gas which obeys the gas laws and obey ideal gas equation.
Characteristics of ideal gas :-
Frictional electricity : The electricity developed by rubbing or friction is called frictional electricity. The rubbed substa
Study of muscles is called mycology.
Muscle system consist muscle fibers as smallest unit.
the hard, protective and supportive parts of body forms skeleton (skeletal system).
In our body, bones & some cartilages form this system & provide a frame
Skull :- it is protective covering of head. It has 4 parts :-
Cranium
Charge --Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field.
Two kinds of charges : The following simple experiment proves these facts:
Rub a gla
Load More...
Test Details
The determinant
Test Details
If the adjoint of a 3 x 3 matrix P is
Test Details
A compound MpXq has cubic close packing (ccp) arrangement of X. Its unit cell structure is shown below
The empirical formula of the compound, is
Test Details
A boy sitting on the topmost berth in the compartment of a train which is just going to stop on a railway station, drops an apple aiming at the open hand of his brother sitting vertically below his hands at a distance of about 2 meter. The apple will fall
Test Details
In figure are shown charges q1 = + 2 × 10–8 C and q2 = – 0.4 × 10–8 C. A charge q3 = 0.2 × 10–8 C in moved along the arc of a circle
Test Details
Potential at a point x-distance from the centre inside the conducting sphere of radius R and charged with charge Q is &nbs
Test Details
Number of electrons in one coulomb of charge will be [RPET 2001; MP PMT/PET 1998]
Test Details
A sphere of 4 cm radius is suspended within a hollow sphere of 6 cm radius. The inner sphere is charged to a potential 3 e.s.u. When the outer sphere is earthed. The charge on the inner sphere is
Test Details
Eight drops of mercury of same radius and having same charge coalesce to form a big drop. Capacitance of big drop relative
to that of small drop will be [MP PMT 2002, 1990; MNR 1999, 87; DCE 1998]
Test Details
A beam of electrons moving at a speed of 106 m/s along a line produces a current of 1.6 ´ 10–6 A. The number of electrons in the 1 metre of the beam is &nb
Test Details
A copper wire of length 1m and radius 1mm is joined in series with an iron wire of length 2m and radius 3mm and a current is passed through the wire. The ratio of current densities in the copper and iron wire is
Test Details
From the graph between current i & voltage V shown, identity the portion corresponding to negative resistance[CBSE PMT 1997]
Test Details
A and B are two wires. The radius of A is twice that of B. they are stretched by the same load. Then the stress on B is [MP PMT 1993]
Test Details
The Young’s modulus of a wire of length L and radius r is Y N/m2. If the length and radius are reduced to L/2 and r/2, then its Young’s modulus will be
Test Details
A fixed volume of iron is drawn into a wire of length L. The extension x produced in this wire by a constant force F is proportional to[MP PMT 1999]
Test Details
When a 4 kg mass is hung vertically on a light spring that obeys Hooke’s law, the spring stretches by 2 cms. The work required to be done by an external agent in the stretching this spring by 5cms will be (g = 9.8 m/s2)
Test Details
A uniform cube is subjected to volume compression. If each side is decreased by 1%,then bulk strain is [EAMCET (Engg.) 1995; DPMT 2000]
Test Details
The magnitude and direction of the current in the circuit shown will be [CPMT 1986, 88]
Test Details
What will be the equivalent resistance of circuit shown in figure between points A and D [CBSE PMT 1996]
Test Details
Which of the following compound does not exist? [AIPMT 1989]
Test Details
It is possible to obtain oxygen from air by fractional distillation because [AIPMT 1989]
Test Details
Compared with the alkaline earth metals, the alkali metals exhibit [AIPMT 1990]
Test Details
Hypo is used in photography to [AIPMT 1988]
Test Details
When orthophosphoric acid is heated to 600°C, the product formed is [AIPMT
1989]
Test Details
The gases respectively absorbed by alkaline pyragallol and oil of cinnamon are [AIPMT 1989]
Test Details
An example of a double salt is [AIPMT 1989]
Test Details
Compared with the alkaline earth metals, the alkali metals exhibit [AIPMT 1990]
Test Details
Each of the following is true for white and red phosphorus except that they [AIPMT 1989]
Test Details
Which of the following is a nitric acid anhydride? [AIPMT 1988]
Test Details
The substance used a smoke screen in warfare is [AIPMT 1989]
Test Details
Bleaching powder is obtained by the action of chlorine gas and [AIPMT 1988]
Test Details
Bleaching powder reacts with a few drops of conc HCl to give [AIPMT 1989]
Test Details
Which of the following atoms will have the smallest size? [AIPMT 1989]
Test Details
A soap bubble is given negative charge. Its radius will [DCE 2000; RPMT 1997; CPMT 1997; MNR 1988]
Test Details
A half ring of radius R has a charge of λ per unit length. The electric field at the centre is
[CPMT 2000; CBSE PMT 2000; REE 1999]
Test Details
Equal charges Q are placed at the vertices A and B of an equilateral triangle ABC of side a. The magnitude of electric field at the point A is
Test Details
A sphere of 4 cm radius is suspended within a hollow sphere of 6 cm radius. The inner sphere is charged to a potential 3 e.s.u. When the outer sphere is earthed. The charge on the inner sphere is
Test Details
The electric field, at a distance of 20 cm from the centre of a dielectric sphere of radius 10 cm is 100 V/m. The ‘E’ at 3 cm distance from the centre of sphere is &n
Test Details
The relationship between force and position is shown in the figure given (in one dimensional case). The work done by the force in displacing a body from x=1 cm to x= 5 cm is
Test Details
Which of the following phenomenon does not show the wave nature of light [RPET 2003; MP PMT 2003]
Test Details
As a result of interference of two coherent sources of light, energy is [MP PMT 2002; KCET 2003]
Test Details
Two coherent monochromatic light beams of intensities I and 4I are superposed. The maximum and minimum possible intensities in the resulting beam are [IIT-JEE 1988; AIIMS 1997; MP PMT
Test Details
Which one of the following orders is not in accordance with the property stated against it? [AIPMT 2006]
Test Details
With which of the following electronic configuration an atom has the lowest ionisation enthalpy? [AIPMT 2007]
Test Details
The adjoining diagram shows the velocity versus time plot for, a particle. The work done by the force on the particle is positive from
Test Details
Two masses of 5 kg and 10 kg are connected to a pulley as shown. What will be the acceleration of the system (g = acceleration due to gravity)
Test Details
Two masses M and m are connected by a weight less string. They are pulled by a force F on a frictionless horizontal surface. The tension in the string will be
Test Details
Flight and fight hormone is: (CPMT 2007)
Test Details
Which hormone is responsible for milk ejection after the birth of the baby ? ( Har. PMT 2008)
Test Details
Somatostatin is secreted by : (up-CPMT 2010)
Test Details
The hormone which regulates sleep – wake cycle in man is : (Kerala PMT – 2010)
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Flight and fight hormone is: &n
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Which hormone is responsible for milk ejection after the birth of the baby ? &
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Somatostatin is secreted by : (up-CPMT 2010)
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The hormone which regulates sleep – wake cycle in man is : (Kerala PMT – 2010)
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The ability of a substance to assume in two or more crystalline structures is called [AIPMT 1990]
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Glass is a [AIPMT 1991]
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Which would quickly absorb oxygen [AIPMT 1991]
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Oleum is [AIPMT 1991]
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P2O5 is heated with water to give [AIPMT 1991]
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Find magnetic field at centre O in each of each of the following figure
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For the solenoid shown in figure. The magnetic field at point P is
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Find out the magnitude of the magnetic field at point P due to following current distribution
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Three long, straight and parallel wires carrying currents are arranged as shown in figure. The force experienced by 10 cm length of wire Q is
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For the solenoid shown in figure. The magnetic field at point P is
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The coil of a galvanometer consists of 100 turns and effective area of 1 square cm. The restoring couple is 10– 8 N-m rad. The magnetic field between the pole pieces is 5 T. The current sensitivity of this galvanometer will be
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An electron (mass =9 x 10-31kg charge =1.6 x 10-19coul.) whose kinetic energy is 7.2 x 10-18 joule is moving in a circular orbit in a magnetic field of 9 x 10-5 weber/m2 The radius of the orbit is
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Figure shows the cress sectional view of the hollow cylindrical conductor with inner radius 'R' and outer radius '2R', cylinder carrying uniformly distributed current along it's axis. The magnetic induction at point 'P' at a distance 3R/2
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Find magnetic field at centre O in each of the following figure
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The magnetic field at a point X on the axis of a small bar magnet is equal to the field at a point Y on the equator of the same magnet. The ratio of the distance of X and Y from the centre of the magnet is
[MP PMT 1990]
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Two magnets are held together in a vibration magnetometer and are allowed to oscillate in the earth's magnetic field. With like poles together 12 oscillations per minute are made but for unlike poles together only 4 oscillations per minute are executed. The ratio of their magnetic moments
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The time period of a freely suspended magnet is 2 sec. If it is broken in length into two equal parts and one part is suspended in the same way, then its time period will be &nb
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A magnet is suspended in such a way that it oscillates in the horizontal plane. It makes 20 oscillations per minute at a place where dip angle is 30o and 15 oscillations per minute at a place where dip angle is 60o. The ratio of total earth's magnetic field at the two
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If θ1 and θ2 are the deflections obtained by placing small magnet on the arm of a deflection magnetometer at the same distance from the compass box in tan A and tan B positions of the magnetometer respectively then the value
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In vibration magnetometer the time period of suspended bar magnet can be reduced by &
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An iron rod of length L and magnetic moment M is bent in the form of a semicircle. Now its magnetic moment will be
[CPMT 1984; MP Board 1986; NCERT 1975; MP PET/PMT 1988; EAMCET (Med.) 1995;
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Two samples A and B of a gas initially at the same pressure and temperature are compressed from volume V to V/2 (A isothermally and B adiabatically). The final pressure of A is
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If the door of a refrigerator is kept open, then which of the following is true
[BHU 2001; JIPMER 2002; AIEEE 2002; CPMT 2003]
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A gas expands 0.25m3 at constant pressure 103 N/m2, the work done is
[CPMT 1997; UPSEAT 1999; JIPMER 2001, 2002]
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A thermodynamic process is shown in the figure. The pressures and volumes corresponding to some points in the figure are: PA=3 x 104Pa, PB=8 x104 Pa and VA= 2 x 10-3m3, VD=5 x 10-3m3
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Beats are produced with the help of two sound waves on amplitude 3 and 5 units. The ratio of maximum to minimum intensity in the beats is [MP PMT 1999]
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In stationary waves, antinodes are the points where there is [MP PMT 1996]
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In the following indicator diagram, the net amount of work done will be
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A Carnot engine working between 300 K and 600 K has work output of 800 J per cycle. What is amount of heat energy supplied to the engine from source per cycle &
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Carnot cycle (reversible) of a gas represented by a Pressure-Volume curve is shown in the diagram
Consider the following statements
I. Area ABCD = Work done on the gas
II. &nb
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The P-V diagram shows seven curved paths (connected by vertical paths) that can be followed by a gas. Which two of them should be parts of a closed cycle if the net work done by the gas is to be at its maximum value
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Four curves A, B, C and D are drawn in the adjoining figure for a given amount of gas. The curves which represent adiabatic and isothermal changes are
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In the following indicator diagram, the net amount of work done will be
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Which of the property makes difference between progressive and stationary waves [MP PMT1987]
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The superposition takes place between two waves of frequency f and amplitude a. The total intensity is directly proportional to &
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The driver of car travelling with a speed 30 meter/sec. towards a hill sounds a horn of frequency 600 Hz. If the velocity of sound in air is 330 m/s the frequency of reflected sound as heard by the driver is
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At what speed should a source of sound move so that observer finds the apparent frequency equal to half of the original frequency &nb
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The speed of a wave in a certain medium is 960 m/sec. If 3600 waves pass over a certain point of the medium in 1 minute, the wavelength is &nbs
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In a stationary wave, all particles are &nb
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The equation of wave is y = 2 sin π(0.5x – 200 t) where x and y are expressed in cm and t in sec. The wave velocity is
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A simple harmonic progressive wave is represented by the equation y = 8 sin 2π (0.1x – 2t) where x and y are in cm and t is in seconds. At any instant the Phase difference between two particles separated by 2.0 cm
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The displacement of a particle is given by x = 3 sin (5πt) + 4 cos (5πt) The amplitude of particle is [MP PMT 1999]
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The path difference between the two waves
y1 = a1 sin (ωt – (2πx/ λ)) and y2 = a2 cos (ωt – (2πx/ λ) + φ) is &nbs
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The stationary wave produced on a string is represented by the equation y = 5 cos(πx/3) sin (40 πt) where x and y are in cm and t is in seconds. The distance between consecutive nodes is &n
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41 forks are so arranged that each produces 5 beat/sec when sounded with its near fork. If the frequency of last fork is double the frequency of first fork, then the frequencies of the first and last fork respectively
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If two waves of same frequency and same amplitude respectively on superimposition produced a resultant disturbance of the same amplitude the wave differ in phase by &nbs
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The tuning fork and sonometer wire were sounded together and produce 4 beats/second when the length of sonometer wire is 95 cm or 100 cm. The frequency of tuning fork is
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A source of sound of frequency 90 vibration/sec is approaching a stationary observer with a speed equal to 1/10 the speed of sound. What will be the frequency heard by the observer
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The source of sound s is moving with a velocity 50 m/s towards a stationary observer. The observer measures the frequency of the source as 1000 Hz. What will be the apparent frequency of the source when it is moving away from the observer after crossing him ? The vel
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A man is watching two trains, one leaving and the other coming in with equal speed of 4 m/s. If they sound their whistles, each of frequency 240 Hz, the number of beats heard by the man (velocity of sound in air = 320 m/s) will be equal to &nbs
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Two tuning forks have frequencies 380 and 384 hertz respectively. When they are sounded together, they produce 4 beats. After hearing the maximum sound, how long will it take to hear the minimum sound &nbs
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At constant volume the specific heat of a gas is 3R/2, then the value of γ will be &
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Find the ratio of specific heat at constant pressure to the specific heat constant volume for NH3
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If the intermolecular forces vanish away, the volume occupied by the molecules contained in 4.5 kg water at standard temperature and pressure will be given by &
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The temperature of a gas is raised while its volume remains constant, the pressure exerted by a gas on the walls of the container increases because its molecules &
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A box containing N molecules of a perfect gas at temperature T1 and pressure P1. The number of molecules in the box is doubled keeping the total kinetic energy of the gas same as before. If the new pressure is P2 and temperature T2, then &nb
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22 gm of CO2 at 27°C is mixed with 16 gm of O2 at 37°C. The temperature of the mixture is [CBSE PMT 1995]
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Read the given statements and decide which is/are correct on the basis of kinetic theory of gases [MP PMT 2003]
(I) Energy of one molecule at absolute tempera
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An experiment is carried on a fixed amount of gas at different temperatures and at high pressure such that it deviates from the ideal gas behaviour. The variation of PV/RT with P is shown in the diagram. The correct variation will correspond to
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At the top of a mountain a thermometer reads 7°C and a barometer reads 70 cm of Hg. At the bottom of the mountain these read 27°C and 76 cm of Hg respectively. Comparison of density of air at the top with that of bottom is
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One sphere collides with another sphere of same mass at rest inelastically. If the value of coefficient of restitution is 1/2, the ratio of their speeds after collision shall be &n
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A running man has half the kinetic energy of that of a boy of half of his mass. The man speeds up by 1 m/s so as to have same K.E. as that of boy. The original speed of the man will be
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A neutron having mass of 1.67 x 10-27 kg and moving at 108m/s collides with a deutron at rest and sticks to it. If the mass of the deutron is 3.34 x 10-27 kg; the speed of the combination is &nb
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Two carts on horizontal straight rails are pushed apart by an explosion of a powder charge Q placed between the carts. Suppose the coefficients of friction between the carts and rails are identical. If the 200 kg cart travels a distance of 36 metres and stops, the di
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A metre stick, of mass 400 g, is pivoted at one end displaced through an angle 60o. The increase in its potential energy is
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A rubber ball is dropped from a height of 5m on a planet where the acceleration due to gravity is not known. On bouncing, it rises to 1.8 m. The ball loses its velocity on bouncing by a factor of &n
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The relationship between force and position is shown in the figure given (in one dimensional case). The work done by the force in displacing a body from x=1 cm to x= 5 cm is
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Three particles A, B and C of equal mass are moving with the same velocity v along the medians of an equilateral triangle. These particle collide at the centre G of triangle. After collision A becomes stationary, B retraces its pat
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A sphere of mass 0.1 kg is attached to a cord of 1m length. Starting from the height of its point of suspension this sphere hits a block of same mass at rest on a frictionless table, If the impact is elastic, then the kinetic energy of the block after the collision is &
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A body of mass m moving with velocity v makes a head-on collision with another body of mass 2m which is initially at rest. The loss of kinetic energy of the colliding body (mass m) is [MP PMT 1996; RPET 1999; AIIMS 2003]
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A mass of 20kg moving with a speed of 10m/s collides with another stationary mass of 5 kg. As a result of the collision, the two masses stick together. The kinetic energy of the composite mass will be
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A bullet of mass m moving with a velocity v strikes a suspended wooden block of mass M as shown in the figure and sticks to it. If the block rises to a height h the initial velocity of the bullet is
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A bag P (mass M) hangs by a long thread and a bullet (mass m) comes horizontally with velocity v and gets caught in the bag. Then for the combined (beg + bullet) system the &
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In the following circuit E1 = 4V, R1 = 2W
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In the circuit shown in the figure, the current through
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Current in the circuit will be
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