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The period of a thin magnet in a magneti...

The period of a thin magnet in a magnetic field is `2s`. It is cut into four equal parts by cutting it along length and breadth. The period of each of them in the same field is

A

`1 s`

B

`2 s`

C

`3 s`

D

`4 s`

Text Solution

Verified by Experts

The correct Answer is:
B
`T=2pisqrt((I)/(MB_(H)))` and `T alpha sqrt((I)/(M))`
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