Question

A pendulum oscillates 40 times in 4 seconds. Find its time period and frequency ? ​

Answer 1

Answer:10 TIMES PER SECOND

Explanation:

NO OF OSCILLATION = 40 TIMES

IN TIME                        = 4 SECOND

TIME PERIOD = NO OF OSCILLATION PER SECOND  

                      = 40/4 = 10 TIMES PER SECOND

Answer 2

Explanation:

10hertz.......... ......