The bob of a simple pendulum is hanging vertically down from a fixed identical bob by means of a string oflength If both bobs are charged with a charge ‘q ‘ each , time period of the pendulum is (ignore the radii ofthe bobs)I know it won't alter but why ?

Dear student,

This is because the question assumes that the radius of the ball is much smaller than the length of the pendulam.....I hope you appreciate it...

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