A man standing in a valley between two parallel mountains fires a gun and hears an echo at an interval of 2 s and 3.5 s. what is
The speed of sound is air 340 m / s The two mountains are marked as A and B and man is at P . The first echo comes from mountain A . Time taken by echo to reach man 2 s Time taken by sound to trammel from P to A 1 s Distance travelled by sound in 1 S 340 m The Distance of A from P 340 m The second Echo comes from mountain B . Time taken by echo to reach Thomas 3.5 s Time taken by sound to trend from P to A 1.75 s Distance travelled by sound in 1.75sec 340 1.75 595 m Distance of B from P 595 m Distance between mountains 340 +595 =935 m
