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Perception of Sound

What is ampli...

Question

What is amplitude of vibration? How is amplitude related to loudness?

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Solution

Dear Student,

When a mechanical wave propagates through a medium, the particles of the medium begin to vibrate or oscillate about its mean position. Amplitude is the maximum displacement of a particle from its mean position.

Loudness is directly proportional to the amplitude of the sound vibration. More the amplitude, much louder is the sound.

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The loudness of sound is determined by the

(a) Amplitude of vibration
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