what are beats explain

Beats is a common physical phenomena which refers to the interference of two waves of slightly different frequencies which results in a peculiar waveform which is a periodic variation of both amplitude and frequency. This resulting waveform is known as a beat.

Fore more please refer to the link below

http://cbse.meritnation.com/cbse-physics-physics-part-ii/waves/218/193/studymaterials.html

thanks!

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