Question

why we can not hear an echo in a small room​

Answer 1

Answer:

They can't hear an echo in small room because in it the sound can't be reflected back. For an echo of a sound to be heard,the minimum distance between the source of sound and the walls of the room should be 17.2 m. Obviously,in a small room echoes cannot be heard

Answer 2

Answer:

Because in it the sound can't be reflected back

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