Question

Which property of sound waves decreases as the square of the distance from the source increases?

Intensity is the answer

Answer 1

The answer is intensity.

Step-by-step explanation:

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Answer 2

Intensity

Step-by-step explanation:

The intensity of a sound wave is equal to the ratio between to the power emitted by the source divided by the area of the spherical surface through which the wave propagates:

`I=(P)/(4\pi r^2)`

where

P is the power

`4\pi r^2` is the area of the spherical surface

r is the distance from the source

As we see from the formula, the intensity is inversely proportional to the square of the distance from the source:

`I\propto (1)/(r^2)`

so, intensity is the correct answer.