An echo is produced due to __________ of sound.

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Solution

Echo is the repetition of sound due to the reflection of sound from a hard surface.
For distinct echo, the distance of the reflecting surface must be at least 17 metres or more.
Hence, an echo is produced due to reflection of sound.

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An echo is produced due to __________ of sound.

Echo is the repetition of sound due to the reflection of sound from a hard surface.For distinct echo, the distance of the reflecting surface must be at least 17 metres or more.Hence, an echo is produced due to reflection of sound.

Echo is the repetition of sound due to the reflection of sound from a hard surface.
For distinct echo, the distance of the reflecting surface must be at least 17 metres or more.
Hence, an echo is produced due to reflection of sound.