Question

what happens to the intensity of sound as the distance from the source increases? a it is impossible to tell b it remains the same c it increases d it decreases

Explanation:

The intensity of sound is inversely proportional to the square of the distance from the source (based on the inverse - square law for sound propagation). As the distance \(r\) from the source increases, the denominator \(r^{2}\) in the formula \(I=\frac{P}{4\pi r^{2}}\) (where \(I\) is intensity and \(P\) is power of the source) gets larger, so the intensity \(I\) decreases.

Answer:

d. It decreases