Question

If a wave completes ………..in one second, its frequency is 1 Hz.

Answer 1

Frequency:

1. Frequency is defined as the number of oscillations of the sound wave in one second.
2. The frequency of a wave is the number of full cycles per second.
3. So, if one oscillation is made in one second then the frequency will be 1 $Hz$.

Hence, if a wave completes one oscillation in one second, its frequency is 1 Hz.