A point source emits sound equally in all directions in a non-absorbing medium.
Channel: Doubtnut
Date: 2020-07-05

A point source emits sound equally in all directions in a non-absorbing medium. Two points `P` and `Q` are at the distance of `9 meters` and 25 meters respectively from the source. The ratio of amplitudes of the waves at `P` and `Q` is…..