Science, asked by KamalKishore, 11 months ago

Explain how is "echo" produced? ​

Answers

Answered by bakshianju712pa3lr2
18

An echo is a sound that is repeated because the sound waves are reflected back. Sound waves can bounce off smooth, hard objects in the same way as a rubber ball bounces off the ground. ... That is why echoes can be heard in a canyon, cave, or mountain range.

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Answered by komalgautam636
10

Answer:

Explanation:In audio signal processing and acoustics, echo is a reflection of sound that arrives at the listener with a delay after the direct sounds. The delay is directly proportional to the distance of the reflecting surface from the source and the listener. Typical examples are the echo produced by the bottom of a well, by a buildings, or by the wall of an enclosed room and an empty room. A true echo is a single reflection of the sound source.[citation needed]

The word echo derives from the Greek ἠχώ (ēchō),[1] itself from ἦχος (ēchos), "sound".[2] Echo in the folk story of Greek is a mountain nymph whose ability to speak was cursed, only able to repeat the last words anyone spoke to her. Some animals use echo for location sensing and navigation, such as cetaceans (dolphins and whales) and bats

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