At two places A and B using vibration magnetometer, a magnet vibrates – McqOptions

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1.	At two places A and B using vibration magnetometer, a magnet vibrates in a horizontal plane and its respective periodic time are 2 sec and 3 sec and at these places the earth's horizontal components are HA and HB respectively. Then the ratio between HA and HB will be [MP PMT 1985, 89]
A.	9 : 4
B.	3 : 2
C.	4 : 9
D.	2 : 3
Answer» B. 3 : 2

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