msalene17
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Audible beats are formed bu the interference of two waves

AOf slightly different frequencies
BOf greatly different frequencies
CWith equal frequencies, but traveling in opposite directions
DFrom the same vibrating source.

Verified Answer :

Kalahira

Audible beats are formed by the interferences of two waves in which are from the slightly different frequencies which is letter a. It is because having two waves that consist of slightly different frequency causes or produce the audible beats to be formed in which they are beats that causes sound to be either loud or soft.

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