Two magnets of same size and mass make respectively 10 and 15 oscillat – McqOptions

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1.	Two magnets of same size and mass make respectively 10 and 15 oscillations per minute at certain place. The ratio of their magnetic moments is [Bihar PET 1984; MP PET/PMT 1988; MP PET 1992]
A.	4 : 9
B.	9 : 4
C.	2 : 3
D.	3 : 2
Answer» B. 9 : 4

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