A person clapped his hands near a rock situated 700m from him. will the person be able to hear an echo , if speed of sound is 350m/s
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Step-by-step explanation:
The sound traveled from the place the person stood, to the cliff and then rebounded back to the person , so the person heard the resound/echo.
So the sound traveled twice the distance between him/her and the cliff.
Distance between cliff and person = 346 m/sec * 5 seconds / 2
= 865 meters
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