Question

A pendulum oscillates 1000 times in 50 sec. find its time period and frequency.

Answer 1

Given that 1000 oscillations are made by the pendulum for 50 sec.
So, It makes 20 oscillations are made by the pendulum for 1sec.
We know that the number of oscillations made per second (20 oscillations per second ) is called its frequency


∴ Frequency = 20 Hz
Time period = 1/ Frequency
Time period = 1/ 20
Time period = 0.05 sec