Question

To hear the echo distinctly the distance from the source of s ound of the reflecting surface be same at all temperatures ? Explain your answer.​

Answer 1

Answer:

Echoes are reflected off walls or hardsurfaces like mountains. Thus, since the velocity of sound is approximately 343 m/s at a normal roomtemperature of about 20°C, thereflecting object must be more than 16.2 m from the sound source at thistemperature for an echo to be heard by a person at the source.

Explanation:

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