Question

sympol pendulum takes 30 seconds to complete 15 oscillations find its time period​

Answer 1

For 15 oscillation it takes 30 sec

For one oscillation Tme period = 30/15 = 2sec

Frequency = 1/ Time period

=1/2=0.5 Hz

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Answer 2

Answer: 2 seconds

Explanation: Time period refers to the time take by the pendulum to complete 1 oscillation.

So,   15 oscillation    =     30 seconds

         1  oscillation    =     30/ 15 seconds

                                 = 2 seconds

So, the time period is 2 seconds.

and the frequency is  1/ time period=   0.5 hertz.    

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