question_answer

The period of oscillation of a vibration magnetometer depends on which of the following factors              [KCET 1994]

A)            I and M only                         

B)            M and H only

C)            I and H only                          

D)            I, M and H only where I is the moment of inertia of the magnet about the axis of suspension, M is the magnetic moment of the magnet and H is the external magnetic field