Question

A simple pendulam makes 10 oscillations in20 seconds .what is the time period and frequency of it's oscillation?

Answer 1

Time period is the time taken for the pendulum to complete one oscillation.
To measure the time period =
no.of oscillation/ Time

So, 10/20 = 2.

Frequency is the number of oscillations completed in one second.

Here the pendulum takes 20 seconds so the frequency will be
20 hertz.