Question

A pendulum oscillates 50 times in 4 seconds .Find its
Frequency and time-period?

Answer 1

Step-by-step explanation:

time period=

time/no.of oscillation

= 4/50

=0.08 seconds

frequency= 1/time period

= 1 x 100/8

= 12.5 hz

Answer 2

Given : A pendulum oscillates 50 times in 4 seconds.

To find : The frequency and time period.

Solution :

We can simply solve this numerical problem by using the following process. (our goal is to calculate the frequency and time period of the pendulum)

Now, time period is the time taken by the pendulum for making one complete oscillation.

So, the pendulum,

Makes 50 oscialltions in = 4 seconds

Makes 1 oscillation in = (4/50) = 0.08 second

Which implies,

The time period of the pendulum = 0.08 second

Now, we know that :

Frequency = 1/Time period

So,

Frequency = 1/0.08 = 12.5 Hz

Hence, the time period of the pendulum is 0.08 second and frequency of the pendulum is 12.5 Hz.