Q.

The period of oscillation of a magnet in vibration magnetometer is 2 s. The period of oscillation of a magnet whose magnetic moment is four times that of the first magnet is

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a

1 s

b

4 s

c

8 s

d

0.5 s

answer is A.

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Detailed Solution

T1T2=M2M1=4MM=2⇒2T2=2⇒T2=1 s
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