Define the ‘frequency’ and ‘time-period’ of a wave. What is the relation between the two?

Frequency: Number of cycles or vibration in one second is known the frequency. SI unit of frequency is $per\ second$ and it is also written as $Hz$.

Time period: Time taken to complete one cycle or vibration is called the time period.

Relation between frequency and time period:

$\boxed{frequency(f)\times time-period(T)=1}$

Or $\boxed{frequency(f)=\frac{1}{time-period(T)}}$

Or $\boxed{Time-period(T)=\frac{1}{frequency(f)}}$

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Updated on: 10-Oct-2022

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