Question

defination of spherical wave surface​

Answer 1

Answer:

Spherical Waves from a Point Source. Acoustic theory tells us that a point source produces a spherical wave in an ideal isotropic (uniform) medium such as air. In a spherical pressure wave of radius , the energy of the wavefront is spread out over the spherical surface area .

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Answer 2

Answer:

sperical waves from a point source.in a spherical pressure wave of radius the energy of wavefront is spread out over the spherical surface area.therefore the energy per unit area of an expanding spherical pressure wave decreases