A simple pendulum makes 10 oscillations in 20 seconds. What is the time period and frequency of its oscillation? What is noise?

A simple pendulum makes 10 oscillations in 20 seconds. What is the tim

1.	A simple pendulum makes 10 oscillations in 20 seconds. What is the time period and frequency of its oscillation? What is noise?
Answer» When a SIMPLE pendulum MAKES 10 oscillations in 20 seconds, the time taken for each oscillation = 20/10 = 2 seconds. HENCE, as the time period is calculated to be 2 seconds, the FREQUENCY of oscillation = 1/T = 1/ 2 = 0.5 Hertz. THEREFORE, the frequency of that pendulum is found to be 0.5 Hz.