two different magnets tied together and allowed to vibrate in a horizontal plane when their like poles are joined, - Physics - Magnetism And Matter

Question

two different magnets tied together and allowed to vibrate in a
horizontal plane when their like poles are joined, time period of
oscillation is 5s and with unlike poles joined, the time period of
oscillation is 15s the ratio of their magnetic moments is (1) 5:4
(2) 1:3 (3) 3:1 (4) 2:5

Deepak Kumar · Accepted Answer

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two different magnets tied together and allowed to vibrate in a horizontal plane. when their like poles are joined, time period of oscillation is 5s and with unlike poles joined, the time period of oscillation is 15s. the ratio of their magnetic moments is (1) 5:4 (2) 1:3 (3) 3:1 (4) 2:5