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Two bar magnets of the same mass, length...

Two bar magnets of the same mass, length and breath having magnetic moment M and 2M are joined together pole to pole and suspended in na vibration magnetomer. The time period of oscillation is 3s. If the polarity of one of the magnets is reversed, the time period of oscillation will be

A

3s

B

`3sqrt3s`

C

`3//sqrt3s`

D

`3sqrt2s`

Text Solution

Verified by Experts

The correct Answer is:
D
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