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A magnet, when suspended in an external ...

A magnet, when suspended in an external magnetic field, has a period of oscillation of 4 s. When it is cut length wise, and suspended in the same magnetic field, the period of vibration will be

A

`2 sqrt(2) s`

B

`2 s`

C

`4 sqrt(2) s`

D

`8 s`

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The correct Answer is:
B
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