A magnet is suspended horizontally in the earth's magnetic field. When it is displaced and released, it oscillates in a horizontal plane with a period T . If a piece of wood of same moment of inertia as the magnet is attached to the magnet, the new period of oscillation of the system would be

Question

A magnet is suspended horizontally in the earth's magnetic field. When it is displaced and released, it oscillates in a horizontal plane with a period T . If a piece of wood of same moment of inertia as the magnet is attached to the magnet, the new period of oscillation of the system would be, T 3, T 2, T 2, 2 T

MARKS App · Accepted Answer

T = 2 π l M B H T ′ = 2 π 2 l M B H = 2 T

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