Echo-

Echo is...

What is this phenomenon and how does it arise? What is an echo? **Echo** is the sound repeated reflection of one wave from any obstacle and transition to another phase of oscillations. It can be heard in mountains or forests, but is best known for its use on various types of wave reflectors. In general, sound waves can be reflected, for example, by walls, ceilings and walls. Because of this, we hear ourselves better on TV if we are in a room with significantly less upholstered walls than where it is broadcast. This will allow them to better remember little things like particularly colorful dresses. Radio can do much better