Question
126.The length of a magnet is very large as compared to its width and breadth The time period of its oscillation in a vibration magnetometer is 2 seconds The magnet is cut perpendicular to its length into 3 equal parts and three parts are then placed on each other with their like poles together The time period of this combination will be 1)2s 2)2/3s 3)23s 4)2/3s