A repetition of original sound because of reflection by some surface is called echo
0
Sudhanshu Pradhan answered this
When a sound travel and come return it is called as eco but there are some conditions
1. The room should be empty 2. There should be no furnitures in room 3. It sould be a big hall
0
Vedant Avhad answered this
The echo is a reflection of sound which is heard many times and it causes when stand in front of a smooth and a hard surface and the minimum distance for heating an echo is17.2m
1
Vishal Bedre answered this
Echo is the repetation of sound from some surface is known as echo
