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A bar has a magnetic moment equal to 5xx...

A bar has a magnetic moment equal to `5xx10^(-5) weberxxm`. It is suspended in a magnetic field which has a magnetic induction (B) equal to `8pixx10^(-4)` tesla. The magnet vibrates with a period of vibration equal to 15 sec. The moment of intertia of the magnet is

A

`22.5 kg -m^(2) `

B

`11.25 kg - m^(2) `

C

`5.62 kg m ^(2) `

D

`0.57 kg-m^(2) `

Text Solution

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The correct Answer is:
D
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FIITJEE-MAGNETISM AND MATTER-ASSIGNMENT PROBLEMS OBJECTIVE : (LEVEL -I) (MULTI CHOICE SINGLE CORRECT)
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