Question

when a sound is reflected from a distant object,an echo is produced and heard in winter night.Now,if the distance between the reflecting surface and the source of sound production remains the same,will you hear the echo of the same sound on summer day?Explain? ​

Answer 1

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Answer 2

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An echo is heard when the time interval between the original sound and the reflected sound is at least 0.1 s.

The speed of sound in a medium increases with an increase in temperature.

Hence, on a hotter day, the time interval between the original sound and the reflected sound will decrease.

Therefore, an echo can be heard only if the time interval between the original sound and the reflected sound is greater than 0.1 s.

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