Question

# A pendulum makes 40 oscillations in 4 seconds. Find its time period.

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Solution

## Step 1: Given dataNo. of oscillations $=40$Time taken $=4seconds$Step 2: Finding the time period, T using the formulaWe know that time period, $T=\frac{Timetakenforno.ofoscillations}{No.ofoscillations.}$The time period, $T$ of the given pendulum, is $T=\frac{4}{40}\phantom{\rule{0ex}{0ex}}=\frac{1}{10}second$Therefore, the time period of the given pendulum is $\frac{1}{10}sec.$

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