Question

Simple pendulum takes 42s to complete 20 oscillations. what is its time period? *

Answer 1

Answer:

Time taken to complete 20 oscillations =42s

Time taken to complete 1 oscillation =42/20s 2.6s

Time period of a pendulum is time taken by it to complete 1 oscillation.

Time period of pendulum is 2.6 second

Answer 2

Answer:

2.1 secs

Explanation:

TIME PERIOD = Time taken / No of Oscillations

               time taken =42 sec

          No of oscillations = 20

                                                             =42/20

                                                                    = 2.1 sec

hope it will help you