Question

write all the differences between echo and revibration ...

Answer 1

here is ur answer buddy

hope it helps :-)

Answer 2

$\textbf{Echo}$ is defined as a repetition of sound due to reflection of original sound by a large and hard obstacle.

They depends on size of the obstacle .

They also depends on nature of the obstacle.
$\textbf{Reverbreation}$ is that effect of sound which appears to be as prolonged than normal sound.