A point source emits sound equally in all direction is a non-absorbing medium. Two points P and Q are at distances of 2m and 3m, respectively, from the source. The ratio of the intensities of the waves at P and Q is …….
A. 3 : 2
B. 4 : 9
C. 2 : 3
D. 9 : 4
Answer:D
A point source emits sound equally in all direction is a non-absorbing medium. Two points P and Q are at distances of 2m and 3m, respectively, from the source. The ratio of the intensities of the waves at P and Q is …….
A. 3 : 2 B. 4 : 9 C. 2 : 3 D. 9 : 4