Question

A pendulum oscillates 30 times in 5 seconds. Find the time period.

Answer 1

frequency=30/6= 5 hertz

time period= 1/f=1/5=0.2

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Answer 2

Given,

In 5 seconds pendulum oscillates for 30 times.

To Find,

Time period of the pendulum.

Solution,

The pendulum oscillates 30 times in 5 secs

So, time taken to oscillate once=5/30=0.167

Hence, time period of the pendulum is 0.167 secs.