WHAT HAPPENS TO TIME PERIOD WHEN WE DO THE SIMPLE PENDULUM EXPERIMENT IN MOVING LIFT?

Hi,

If you are doing a simple pendulam expriment in moving lift, than because of movement of lift there is a pseudo force that you need to consider, which will act downwards if the lift is moving upwards and vice versa. So because of this force the net downward force will get altered thereby altering the net downward acceleration. We call this new downward acceleration as Geffective.

So as T is inversly praportion to root(geffective). If the lift move upwards, geffective.g, time peroid decreases and vice versa.