Question

A simple pendulum takes 42 sec to complete 20oscillations. What is it's time period

Answer 1

Answer:

number of oscillation = 20

Total Time taken to complete 20 oscillations = 42 s

$time \: period = \frac{total \:t ime \:taken }{number \: of \: oscillations} = \frac{42}{20} = 2.1s$

hope it helps you

thank you