Question

what is an echo? give the condition for the production of an echo. ​

Answer 1

Answer:

Echo : a sound that is repeated as it is sent back off a surface such as a wall of a tunnel.

An echo could be produced with the help of a vibrating object.

Answer 2

Answer:

$\huge \bold\color{orange}{ \underline{ Echo }}$

We can define and Echo as a repetition of sound produced by the reflection of sound waves by reflecting surface.

Conditions for the production of an echo are:-

⚫️ The direct sound should be loud.

⚫️There should be a reflecting surface.

⚫There should be a distance of about 17 metre between the source of sound(direct sound) and the reflecting surface. Alternatively, we can say at least 0.1 second must elapse between direct sound and the echo.

Hope it helps

Plz mark as brain list