An echo is heard in 3s. what is the distance of the reflecting surface from the source, given that the speed of sound is 342 m/s
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Answer:
Given:
v=342m/s(speed of the sound)
echo returns in time(t)=3seconds
To find:
Distance of reflecting surface from the source
Solution:
Distance travelled=v×t
=342×3
=1026m
In the given interval of time the sound must travel a distance which is twice the distance of reflecting surface and source
Therefore, Distance of reflecting surface from source=1026/2
=513m
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