Question

a siple pendulam takes 2o oscilation in 25 seconds then what will be the time period and frequency

Answer 1

Answer:

The Time Period is 1.25 s and the Frequency is 0.8 Hz.

Explanation:

No. of oscillations done by a pendulum in 25 seconds = 20

No. of oscillations done by the pendulum in 1 second = [20/25] Hz

Frequency = 0.8 Hz

Time Period = 1/F

= 1/0.8 s

= 1.25 s

Hope this helps.

Answer 2

Answer:

Given:

We have been given that number of oscillations of a simple pendulum is 20 and the time taken is 25 seconds.

To Find:

We need to find the time period and frequency of the pendulum.

Solution:

We know that the time period of a pendulum is given by:

Time taken by pendulum/number of oscillations.

Substituting the values, we have,

Time period = 20/25

= 4/5seconds

Now, frequency = 1/time period

= 1/(4/5)

= 1/4 × 5

= 5/4 Hertz

Hence, the time period of the pendulum is 4/5 seconds and frequency is 5/4hertz.