Question

My question is pretty brief. When two sound waves of nearly same frequencies interfere, we get beats.

But, I have not observed something like that happening in the case of light. In fact, most of the light around us is a collection of continuous wavelength range which must be all nearly same frequencies.

Can we observe beats in light waves, as in case of sound waves?

If yes, how to observe them?

Answer 1

Beats are not observed in light waves because light waves have much higher frequencies than sound waves.

Step-by-step explanation:

Beats occur when two sound waves of nearly the same frequencies interfere, resulting in a variation in amplitude. However, in the case of light, beats are not observed because light waves have much higher frequencies than sound waves. The frequency of light waves is in the range of 10^14 Hz, while the frequency of sound waves is in the range of 10-20,000 Hz. The difference in frequency between the waves is what allows us to observe beats in sound waves but not in light waves.