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A bar magnet ,freely suspended in a magn...

A bar magnet ,freely suspended in a magnetic induction H makes 20 oscillates per minute. When another magnet X is brought near it, the number of oscillations are found to be 10 per minute. What is the influencing induction of magnet X, in terms of H (where H >X)

A

X=frac(2)(3)H

B

X=frac(3)(2)H

C

X=frac(3)(4)H

D

X=frac(4)(3)H

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CHETANA PUBLICATION-Oscillations.-EXERCISE
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