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Loudness

a Which of th...

Question

(a) Which of the following quantity determines the loudness of a sound wave ?

(i) wavelength, (ii) frequency, and (c) amplitude.

(b) How is loudness related to the quantity mentioned above in part (a) ?

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Solution

Amplitude - The louder sound corresponds to the wave of large amplitude.
(b) Loudness is directly proportional to the square of amplitude.

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