Question

A person cho clapped his hand near a cliff and heard
the echo after 2 sec What is the distance of the clift from
the person if the speed of the sound, v is taken a 346 ms​

Answer 1

Answer:

I think the answer is 692

Explanation:

t= 2 s

v= 345 m/s

velocity= distance/ time

346= s/2

s= 346*2=692

Answer 2

The distance of the cliff from the person if the speed of the sound, v is taken as 346m/s and the echo returns after 2 sec is 346 m.

Let x be the distance of the cliff from the person.

The echo is heard after 2 seconds which means sound travels from the person to cliff and then back in 2 s, i.e., it travels double the distance.

d=2x

Since d = v×t

         2x= v×t

          2x= (346)×(2)

            x= 346m