Question

a pendulum oscillation 40 times in 4 second find its time period and frequency​

Answer 1

Answer:

Number of oscillations = 40

Time taken to complete 40 oscillations = 4 sec

Time taken to complete one oscillation =4/10= 0.1 sec

So time period = 0.1 sec

Frequency = 1/Time period= 1/0.1=10Hz

Answer 2

Answer:

hi dear

Explanation:

The number of oscillations=40

The time taken to complete 40 oscillations=4sec

The time taken to complete 1 oscillation=4/10=0.1sec

so the time period=0.1sec