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Question: Answered & Verified by Expert
The period of oscillations of a magnet is 2 s. If it is magnetized such that the pole strength becomes 4 times, then its period will be
PhysicsMagnetic Properties of MatterNEET
Options:
  • A 4 s
  • B 1 s
  • C 2 s
  • D 12 s
Solution:
1594 Upvotes Verified Answer
The correct answer is: 1 s
When pole strength becomes 4 times, magnetic moment M becomes four times.

As T1M

Therefore, T becomes 14=12 times.

T=22=1 s

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