How does the intensity of a sound wave change if the distance from the source is reduced by a factor of 3?

The intensity increases by a factor 9

Explanation:

The intensity of a sound wave follows an inverse square law, that means that it is inversely proportional to the square of the distance:

where r is the distance from the source.

In this problem, the distance from the source is reduced by a factor 3, so the new distance is

this means that the new intensity will be

So, the intensity will increase by a factor 9.

its a 5.5 n

glad that