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

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Solution

Step 1: Given data
No. of oscillations $= 40$
Time taken $= 4 s e c o n d s$
Step 2: Finding the time period, T using the formula
We know that time period, $T = \frac{T i m e t a k e n f o r n o . o f o s c i l l a t i o n s}{N o . o f o s c i l l a t i o n s .}$
The time period, $T$ of the given pendulum, is
$T = \frac{4}{40} = \frac{1}{10} s e c o n d$
Therefore, the time period of the given pendulum is $\frac{1}{10} s e c .$

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