If the amplitude of a sound wave is tripled, by what factor will the intensity increase?

By a factor 9

Explanation:

The intensity of a sound wave is proportional to the square of the amplitude of the wave:

where

I is the intensity

A is the amplitude of the wave

In this problem, the amplitude of the sound wave is increased by a factor 3:

A' = 3A

So the intensity would change by

So, the intensity would increase by a factor 9.

6/12=1/2

step-by-step explanation:

hi there!

out of the two, (b) precision would be more reasonable.   however, both a and b could be pretty reasonable.

-awesomerepublic   : )