بسم الله الرحمن الرحيم
The energy carried by the sound wave, which is called the intensity. The intensity of a sound wave is the average amount of energy transmitted per unit time through a unit area in a specified direction. The intensity I of a sound wave is proportional to the average over time of the square of its pressure p
I = (p2/ρc)average
("ρ" is the density of medium carrying the sound and c is the speed of sound).
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