Question

A simple pendulum takes 15 secs. to complete 5 oscillations. whats is the time period of pendulum?

Answer 1

t =15 sec for 5 oscillation
therefore , one oscillation will complete =15/5
=3 sec for each oscillation

Answer 2

Answer:

A simple pendulum takes 15 secs to complete 5 oscillations.  The time period of the pendulum will be $3\ s$

Explanation:

• The time period is the time taken to complete one to and fro motion of the oscillating body.

• It can be obtained from the ratio of time taken for the oscillations and the number of oscillations made by the pendulum.

• Let T be the time period N  be the number of oscillations  and t be the time taken for the oscillations then,

        $T = \frac{t}{N}$      ....(1)

In the question, it is given that,

$t=15\ s$

$N = 5$

Substitute these values into equation(1)

$T = \frac{15}{5} = 3\ s$

• Time period of the pendulum = $3\ s$