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JEE MAIN 2019
10-01-2019 S2
Question
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
Select the correct option:
A
$\mathrm{T}_{\mathrm{h}}=0.5 \mathrm{~T}_{\mathrm{c}}$
B
$\mathrm{Th}=\mathrm{T}_{\mathrm{c}}$
C
$T_h=2 T_c$
D
$\mathrm{Th}=1.5 \mathrm{~T}_{\mathrm{c}}$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
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Physics
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