Answers

2015-01-20T21:13:51+05:30
It is defined as the power( j/sec ) of sound per unit area(m²),in other words,the amount of energy ( J) per unit time (sec.) per a unit area (m²).
hence its formula= (J/s) /m²
                         =W/m²
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2015-01-21T16:49:49+05:30
The rate at which sound energy is transferred as measured relative to some reference. Loudness determines the intensity of the sound.
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