Question

1. Distinguish between loudness
and intensity of sound.

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Answer 1

Intensity of a sound wave is defined as the amount of sound energy passing through a unit area per second.

Loudness is a measure of the response of the ear to the sound. The loudness of a sound is defined by its amplitude. The amplitude of a sound decides its intensity, which in turn is perceived by the ear as loudness.

Answer 2

loudness - it is as measure the sound energy reaches per second.

si unit decible

it depend on the amplitude (. loudness ~ amplitude)

intensity = energy on per unit area and unit time

also intensity = power / area