an echo is heard in 4s . what is the distance of the reflecting surface from the source, given that the speed of sound is 346 ms-1
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an echo is heard in 4s . what is the distance of the reflecting surface from the source, given that the speed of sound is 346 ms-1
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Answer:
692
Explanation:
22d=s×t
d=346×4
d=346×4
-----------
2
distance=692.
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