calculate the minimum distance between the object and the source at which the echo can be distinctly heard.??
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ashish6035:
i know that... i want calcation for that 17m broo....
calculation**.
speed of sound =344 m/s. Temperature =22 ºC. Hence, the total distance covered by the sound from the point of generation to the reflecting surface and back = (344 m/s) ×0.1 s = 34.4 m. Thus, for hearing distinct echoes, the minimum distance of the obstacle from the source of sound must be half of this distance. I.e., 34.4/2 = 17.2 m [given speed of sound 344m/s]
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The minimum distance should be atleast 16.5metres
calculation..
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