When two magnets allowed to oscillate in uniform magnetic field with like pole together, then 12 oscillations are completed in one minute. When unlike pole together at same place, 4 oscillations are completed in one minute, the ratio of their magnetic moments is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Let M 1 and M 2 be magnetic moments.
For like pole together, magnetic moment 
For unlike pole together, magnetic moment 
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