Question

A simple pendulum makes 60 oscillation in 30 seconds.What is the time period and frequency of its oscillation?

Answer 1

Hi there !!
Here's your answer

Given that ,
The pendulum makes 60 oscillations in 30 seconds
So,
In 1 second , the pendulum will make 60/30 = 2 oscillations

Thus ,
The frequency is 2 Hertz [ as frequency refers to the number of oscillations per second ]

Now,
Time period = 1/Frequency
Time period = 1/2
Time period = 0.5 second

Thus,
The frequency is 2 Hertz and the time period is 0.5 second

_________________________

Hope it helps :D

Answer 2

No. of oscillations completed by the pendulum= 42 

Time taken to complete 42 oscillation= 20 seconds 

Time period= No. of oscillations completed/Time taken 

Time period= 42/20 

= 21/10 (cancelled by 2) 

= 2.1 

Time period= 2.1 seconds