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Loudness and Pitch

Larger the am...

Question

Larger the amplitude, ............... is the sound.

A

softer

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B

shriller

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C

flatter

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D

louder

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Solution

The correct option is A. louder
$I (d B) = 10 l o g_{10} {\frac{I}{I_{o}}} w h e r e I = i n t e r s i t y & I α a m p^{2}$
Amplitude is merely the magnitude of sound. Thus, more the amplitude, louder is the sound.

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Loudness and Pitch

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