Question

A simple pendulum makes 400 oscillation in 50 sec. What is its frequency and time period?

Answer 1

Answer:

As we know,

Time period = Time taken for no.of oscillation/No. of oscillation

Given,

No. of oscillation = 400

Time taken = 50 sec

Now,

Time period = 5/400 = 1/80 = 0.0125 sec

You know,

Frequency = 1/Time period

= 1/(1/80)

= 80 Hertz

Answer 2

Answer:

Frequency = no of oscillation/ time

= 400 /50

= 8 Hz

Time period = 1 / Frequency

= 1 / 8

= 0.125 seconds