How do beats help determine whether two sound waves are of the same frequency? Use the terms constructive interference and destructive interference in your answer.

Bridger Holden

Bridger Holden

Answered question

2022-09-30

How do beats help determine whether two sound waves are of the same frequency? Use the terms constructive interference and destructive interference in your answer.

Answer & Explanation

Nolan Tyler

Nolan Tyler

Beginner2022-10-01Added 9 answers

Beat is a result of an interference between two waves of slightly different frequencies, perceived as a difference in volume.
Which interference occurs will define the loundness of the sound. If the waves interfere constructively, the sound will be louder, if the waves interfere destructively the sound will be quieter (and this variation of volume will repeat periodically, as long as the waves interfere under different frequencies).
When both waves have the same frequency, no sound will be heard.
Additional information: constructive/destructive interference in the case of beats is the result of compressions and rarefaction, rather than individual crests/troughs. If compression collides with compression (or rarefaction with rarefaction), it will result in constructive interference. If compression collides with rarefaction, destructive interference will occur.

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