Two magnetic dipoles X and Y are placed at a separation d, with their axes perpendicular to each other. The dipole moment of Y is twice that of X. A particle of charge q is passing through their mid-point P, at angle |
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(a) |
0 |
(b) |
|
(c) |
|
(d) |
|
Two magnetic dipoles X and Y are placed at a separation d, with their axes perpendicular to each other. The dipole moment of Y is twice that of X. A particle of charge q is passing through their mid-point P, at angle |
|||
(a) |
0 |
(b) |
|
(c) |
|
(d) |
|
A damped harmonic oscillator has a frequency of 5 oscillations per second. The amplitude drops to half its value for every 10 oscillations. The time it will take to drop to |
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(a) |
100 s |
(b) |
10 s |
(c) |
50 s |
(d) |
20 s |
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