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A thin rod 30 cm long is uniformly magne...

A thin rod `30 cm` long is uniformly magnetised and its period of oscillation is `4 s`. It is broken into three equal parts normal to its length. The period of oscillation of each part is

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1.33 s
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SL ARORA-MAGNETISM-Based on (i) Earth s Magnetism (ii) magnetic field of a bar magnet
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