Question

The loudness is expressed in a unit called decibel:- *

True

False

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Answer 1

Answer:

• The loudness of sound is measured in units called decibels (dB). A decibel unit expresses the relative intensity of sounds on a scale from zero for the average least perceptible sound to about 100 dB, which is near the level most people find uncomfortably loud

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Answer 2

True..

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