A point source emits sound equally in all directions in a non- absorbing medium. Two point A and B are at distance of 12m and 18m respectively from the source. the ratio of the intensities of the w
A point source emits sound equally in all directions in a non- absorbing medium. Two point A and B are at distance of 12m and 18m respectively from the source. the ratio of the intensities of the waves at A and B is :