Question

A simple pendulum takes 40s to complete 20 oscillations. What is the time period of the pendulum?

Answer 1

If a simple pendulum takes 40s to complete 20 oscillation so the time period of the pendulum is 1 oscillation in 2s.

Explanation:

40s = 20 oscillation

40 ÷ 20 = 2

therefore, the pendulum will take 2s for 1 oscillation.