A magnetic needle is made to vibrate in uniform field H, then its time – McqOptions

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1.	A magnetic needle is made to vibrate in uniform field H, then its time period is T. If it vibrates in the field of intensity 4H, its time period will be [MP Board 1988; MP PMT 1992; MH CET (Med.) 1999]
A.	\[2T\]
B.	\[T/2\]
C.	\[2/T\]
D.	\[T\]
Answer» C. \[2/T\]

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