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Noise and Music

The amplitude...

Question

The amplitude of vibration and frequency can abruptly change in a what kind of sound?

A

Pitch

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B

Musical sound

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C

Noise

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D

All of the above

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Solution

The correct option is B Noise
Pitch is a characteristic of sound that depends upon the frequency and the amplitude of vibration doesn't affect it.
A musical sound has regular and discrete frequencies, sudden change in amplitude and frequency will make it unpleasant, so it doesn't happen in musical sound.
Noise is a mixture of irregular and continuous frequencies which has a sudden change in amplitude and frequency.

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