Solved: A source of sound is located at the center of two

Problem 16.107

A source of sound is located at the center of two concentric spheres, parts of which are shown in the drawing. The source emits sound uniformly in all directions. On the spheres are drawn three small patches that may or may not have equal areas. However, the same sound power passes through each patch. The source produces 2.3 W of sound power, and the radii of the concentric spheres are rA 0.60 m and 1

                                                              Step by Step Solution

Step 1 of 2

The relation between the power and intensity can be expressed as

Since the area of surface is spherical area of sphere is

Then above equations change as