Question

A simple pendulum completes 20 oscillations in 25 seconds.Find its frequency and time period.(give ans by writing complete sentence)​

Answer 1

Answer:

THE TIME PERIOD OF THE PENDULUM IS 0.8 SECONDS AND THE FREQUENCY OF THE PENDULUM IS 1.25 HERTZ

Explanation:

Time period = 20/25 = 4/5 secs = 0.8 secs

Frequency = 1/(20/25) = 25/20 = 5/4 = 1.25 Hz

Ans) The time period of the pendulum is 0.8 seconds and it's frequency is 1.25 Hz

Answer 2

Explanation:

Given A simple pendulum completes 20 oscillations in 25 seconds.Find its frequency and time period.(give ans by writing complete sentence)

Given a simple pendulum completes 20 oscillations in 25 secs

Now to complete 20 oscillations the pendulum takes 25 secs

Therefore for 1 oscillation it will take 25 / 20 = 5/4 secs

So time period will be 5/4 secs = 1.25 secs

Now frequency is given by 1 / time period

      Or F = 1 / t

             = 1 / 5/4

             = 4/5 hertz

            = 0.8 hertz

Reference link will be

https://brainly.in/question/17127296