Two magnets held together in earth's magnetic field when the same polarity together causes 12 v i b / min and when opposite poles 4 v i b / m i n . What is the ratio of magnetic moments? If your answer is K, mark 4K as answer after rounding off to nearest integer.

Question

Two magnets held together in earth's magnetic field when the same polarity together causes 12 v i b / min and when opposite poles 4 v i b / m i n . What is the ratio of magnetic moments? If your answer is K, mark 4K as answer after rounding off to nearest integer.,

MARKS App · Accepted Answer

Here we use sum and difference method. M 2 M 1 = T 2 2 - T 1 2 T 2 2 + T 1 2 Where T 1 and T 2 are time periods T ∝ 1 n ( ∵ n i s f r e q u e n c y . ) ⇒ M 1 M 2 = n 1 2 + n 2 2 n 1 2 - n 2 2 = 12 2 + 4 2 12 2 - 4 2 = 144 + 16 144 - 16 = 10 8 = 1 . 25

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