what should be the minimum distance of sound source from the reflecting surface, so that the echo of the sound can be heard?(Assume that the speed of sound in air is 344m/s)
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Answer: The velocity of sound in dry air is approximately 343 m/s at a temperature of 25 °C. Therefore, the reflecting object must be more than 17.2m from the sound source for echo to be perceived by a person located at the source.
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what should be the minimum distance of sound source from the reflecting surface, so that the echo of the sound can be heard?(Assume that the speed of sound in air is 344m/s)
NO SPAM. PLEASE GIVE THE EXPLANATION. PLEASE ANSWER FAST.
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