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AP EAMCET202422 May 2024Morning ShiftPhysicsMagnetic Properties of MatterActual

One bar magnet is in simple harmonic motion with time period T in an earth's magnetic field. If its mass is increased by 9 times the time period becomes

Options

  1. A3T
  2. B9T
  3. C4T
  4. D3 ~T

Correct answer

A. 3T

Step-by-step solution

The time period of a bar magnet in a magnetic field is aligned & T =2 I MB =2 mk ^2 MB ~T ~m & ~T ₂ ~T ₁ = m ₂ ~m ₁ = 9 ~m ₁ ~m ₁ =3 & ~T ₂=3 ~T ₁=3 ~T aligned

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