What is an echo? How it is produced?
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Answer:
The repetition of sound caused by the reflection of sound is called echo. An echo is produced when sound is reflected from a hard surface such as a tall brick wall or a cliff.
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Explanation:
=>The repetition of sound caused by the reflection of sound is called echo.
- An echo is produced when sound is reflected from a hard surface such as a tall brick wall or a cliff.
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