Question

What are beats

Answer 1

Beats can be defined as the periodic fluctuations in the frequency of sound waves. That is option D

What are sound waves?

Sound waves are those waves that are produced by the vibration of an object whose energy is usually propagated through a medium.

When two sound waves of different frequencies meets, a periodic variation that occurs is called beats.

Therefore, Beats can be defined as the periodic fluctuations in the frequency of sound waves.

Learn more about waves here:

brainly.com/question/15663649

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