what is the relation between loudness and amplitude of sound? jus to make it clear because I couldn't understand from the net
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Loudness is directly proportional to square of the amplitude. Example: When a body vibrates with a greater amplitude, it sends forth a greater amount of energy and hence the energy received by the eardrum is large, so the sound appears louder
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The intensity of a sound wave is defined as the amount of sound energy passing through a unit area per second. to remeber it a simple form= I is the sound intensity.Loudness is a measure of the response of the ear to the sound. Its amplitude defines the loudness of a sound. The amplitude of a sound decides its intensity, which is perceived by the ear as loud.
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