What is the distance of the cliff from the boy , if speed is 340ms (Give full answer pls pls )
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if D is the distance between the observer and the obstacle and V is the speed of sound in the medium then the total distance travelled by the sound to reach the obstacle and then to come back is 2d. Time taken to hear the echo is
t= Total distance/speed = 2d/V
d=Vt/2
Let t=0.1 s and V= 340m/s
d=340×0.1/2=17m
t= Total distance/speed = 2d/V
d=Vt/2
Let t=0.1 s and V= 340m/s
d=340×0.1/2=17m
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