There is an insulator rod of length L and of negligible mass with two small balls of mass m and
Channel: Doubtnut
Date: 2020-07-26

There is an insulator rod of length L and of negligible mass with two small balls of mass m and electric charge Q attached to its ends. The rod can rotate in the horizontal plane around a vertical axis crossing it ata distance `L//4` from one of its ends.   What is the time period of the SHM as mentioned in the above question?