A person clapped his hands
near a cliff and heard the echo after 2 s
What is the distance of the cliff from the
person if the speed of the sound, v is
taken as 346 m s-l?
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Answer:
Explanation:
speed of the sound is 246 m/s
time taken to hear echo is 2s
therefore distance travelled by sound is 2d
speed=distance/time
distance=speed*time
=2d=346*2
=d=346*2/2=346m
therefore distance between the person and the cliff is 346m
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