A magnetic needle of negligible breadth and thickness compared to its length, oscillates in a horizontal plane witha period T. The period of oscillation of each part obtained on breaking the magnet into n equal parts perpendicularto the length is

Dear student ,

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The period of oscillation of each part obtained on breaking the magnet into n equal parts perpendicular to the length is T/n
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As s hip hole
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T = 2π√I/MB T' = 2π√I/n^3MB/n = 2π/n √I/MB T' =T/n
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Please note that I is moment of inertia of the needle

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