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What is the formula for the intensity of a spherical wave?

Sagot :

kaylarowland86

Answer:

When there is a point source used without directing the light or sound in a direction, the area of a sphere = 4πr 2 is used instead of the area of circle for calculating intensity. The minimum intensity of sound that a human can hear is 10 -12 Wm -2 and the maximum is 1 Wm -2.

Explanation:

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