Question

A man fires a gun and hears its echo after 5s find the distance of the cliff from the

Answer 1

A man stands at a distance of 68 m from a cliff and fires a gun. The time interval after which will he hears the echo is:[Take the speed of sound in air is 340 m s-1]

Answer 2

Answer:

Explanation:

Let speed of sound be 340m/s

Time taken to hear echo= 5s

Let the distance between the man & cliff= d

So, the value of d=

Speed of sound = 2d/time taken

= 340= 2d/5

d= 850m

The distance between man & cliff= 850m