Questions
Two magnets A and B are identical in mass, length and breadth but have different magnetic moments. In a vibration magnetometer, if the time period of B is twice the time period of A, the ratio of the magnetic moments of the magnets will be
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Correct option is C
T=2πIMBH⇒T∝1M⇒MAMB=TBTA2=41
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The time period of a freely suspended magnet is 4 seconds. If it is broken in length into two equal parts and one part is suspended in the same way, then its time period will be
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