Question

what does the intensity of sound depend upon

Answer 1

The intensity of a sound wave depends not only on the pressure of the wave, but also on the density of the medium and speed of sound in the medium. Higher density and higher sound speed both give a lower intensity.

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Answer 2

intensity of sound is depend upon the frequency of sound
it also depends upon the distance of the observer from the sound source
it also depends upon the place where the source is