Question

2. What is an echo? Why is echo not produced in a small room?
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Answer 1

Answer:

Echo:-The phenomenon of reflection of sound from a surface is called echo. 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.

Answer 2

Echo - hello hello hello

ye hai echo xD

Mai bhi echo

Tu bhi echo

Chal dono karenge echo echo xDxD

Just joking