A.
Musical notes consist of the combination of sounds of regular frequency
B.
The combination of overtones produced by an instrument determines the quality of the sound
C.
the loudness of sound is determined by its frequency
D.
the pitch of a note depends on the frequency of vibration of the source
E.
Noise can be produced by a combination of sounds of irregular frequency
Correct Answer: Option C
Explanation
loudness depends on the intensity of sound while intensity in turn depends on the amplitude of vibration, the frequency of the solution, and the distance away from the sounding body.
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