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CBSE Class 12-science Answered

What is the relation between power and intensity?
Asked by | 13 Jun, 2008, 11:35: PM
answered-by-expert Expert Answer

The intensity of a sound wave is the amount of power in the wave per unit area and has units of W/m2. The intensity of a sound wave depends on how far we are from a source. If we label that distance as R, then the sound intensity is

sound intensity = sound power / (4 π R2) ,where R is the distance we are from the sound source.

Answered by | 16 Jul, 2008, 05:29: PM

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