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 intensitiesof the waves at P and Q is

A point source emits sound equally in all direction is a non-absorbing

1.	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 intensitiesof the waves at P and Q is
Answer» `3 :2` `4 : 9` `2 : 3` `9 : 4` SOLUTION :`I PROP (1)/(r^(2)) IMPLIES (I_(P))/(I_(Q)) = ((r_(Q))/(r_(P)))^(2) = ((3)/(2))^(2) = (9)/(4)`