An echo of sound produced by a man is heard form a distant hill after and interval of 2sec . Ifthe speed of sound in air is 330 m/sec then the distance of the hill from the person
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it's simple
t= 2 sec speed= 330m/s
distance = speed * time
= 2*330
= 660m
t= 2 sec speed= 330m/s
distance = speed * time
= 2*330
= 660m
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