Question 16
A simple pendulum makes 10 oscillations in 20 seconds. What is the time period and frequency of its oscillation?

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Solution

A pendulum makes 10 oscillations in 20 seconds.
So, it makes 1 oscillation in $\frac{20}{10} = 2 s e c$
Time period = 2 sec
$F r e q u e n c y = \frac{1}{T} = \frac{1}{2} = 0.5 H z$
Time period and frequency of its oscillation are 2 sec and 0.5 Hertz.

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