Question

what is echo ?what are the conditions for echo.​

Answer 1

Answer:

when someone shout at a empty space so there voice ecoh's

Explanation:

when you shout at a empty room your voice will echo

Answer 2

Explanation:

The conditions necessary for hearing the echo:

The distance between the sound source and the reflecting surface must not be less than 17 metres where the time period between hearing the original sound and its echo should not be less than 0.1 of a second .

Hope it's help uh ❤️