MHT CET Physics question
Not in JEE Advanced syllabus
A bar magnet, freely suspended in a magnetic induction H, makes 20 oscillation per minute ; When another magnet X is brought near it the number of oscillations are found to be 10 per minute. What is influencing induction of magnet X in terms of H? (where H > X)
Answer: (A)
Solution
with (as ), so gives
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