Question

Solve numerical
1) A boy standing at the hilltop shouts loudly in front of a cliff and hears his echo after 4 second given the speed of sound to be 346 ms-¹,calculate the distance of boy from the cliff.​

Answer 1

Answer:

Given, time of echo=4 sec

Speed of sound=346m/s

distance of the boy from the cliff=?

Using the formula, d=vt/2 for echo

d= 346 x 4/2

d=692m

So, the distance of the boy from the cliff is 692 m.

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