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Two bar magnets of the same mass length ...

Two bar magnets of the same mass length and breadth having magnetic moments M and 2M are joined together pole to pole and suspended in a vibration magnetometer. The time period of oscillation is 3s if now the polarity of one of the magnets is reversed the time period of oscillation will be

A

`sqrt3s`

B

`3sqrt3s`

C

3s

D

6s

Text Solution

Verified by Experts

The correct Answer is:
B
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