A bar magnet is oscillating in the Earth?s magnetic field with a perio – McqOptions

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1.	A bar magnet is oscillating in the Earth?s magnetic field with a period T. What happens to its period and motion if its mass is quadrupled [CBSE PMT 2003]
A.	Motion remains S.H.M. with time period = 2T
B.	Motion remains S.H.M. with time period = 4T
C.	Motion remains S.H.M. and period remains nearly constant
D.	Motion remains S.H.M. with time period \[=\frac{T}{2}\]
Answer» B. Motion remains S.H.M. with time period = 4T

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