A source of sound emits a spherical wave. Which of the following is true about t

Question

A source of sound emits a spherical wave. Which of the following is true about the energy and intensity of the wave as it moves (forward in time)? a. The total energy of the wave and the intensity of the wave are both constant. b. Both the total energy and the intensity of the wave increase. C. The total energy of the wave is constant, but the intensity of the wave increases. d. The total energy of the wave is constant, but the intensity of the wave decreases. e. Both the total energy and the intensity of the wave decrease.

Explanation / Answer

E

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