A simple pendulum has a length l. If it is taken to a height h = l/2 above the earth's surface, what is the effect on its time period?
Q1. A simple pendulum has a length l. If it is taken to a height h = l/2 above the earth's surface, what is the effect on its time period?
Answer: Increases
Explanation: g_eff = g (R/(R + h))². At h = l/2, g_eff < g, so T increases.