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The time period of a freely suspended ma...

The time period of a freely suspended magnetic needle does not depend upon

A

Length of the magnet

B

Pole strength of the magnet

C

Horizontal component of earth's magnetic field

D

Length of the suspension thread

Text Solution

Verified by Experts

The correct Answer is:
D
`T= 2pi sqrt((I)/(MB))`
`I rarr` moment of inertia
`M rarr` magnetic moment
`B rarr` Magnetic field
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