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Magnetics question

2019 · 10 Jan · Shift 2 · Q62
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Magnetics question

2019 · 10 Jan · Shift 2 · Q62

JEE MainPhysicsMagneticsMCQ+4 / −1
A hoop and a solid cylinder of same mass and radius are made of a permanent magnetic material with their magnetic moment parallel to their respective axes. But the magnetic moment of hoop is twice of solid cylinder. They are placed in a uniform magnetic field in such a manner that their magnetic moments make a small angle with the field. If the oscillation periods of hoop and cylinder are Th and Tc respectively, then -
  1. A
    Th = 1.5 Tc
  2. B
    Th = Tc
  3. C
    Th = 2Tc
  4. D
    Th = 0.5 Tc
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