Question

what is echo ?
Echo is related to reflection or refraction ?​

Answer 1

Explanation:

ECHO MEANS REVERBERATION.

IT IS BOUNCING BACK OF SOUND.

ECHO IS RELATED TO REFLECTION.

PLEASE MAKE BRAINLIST AS I HELPED YOU

Answer 2

Answer:

echo is a reflection of sound,when a person shouts in a empty hall,we hear the sound followed by reflected sound of the shout.so,the repetition of sound caused by reflection of sound waves is called an echo. it can be heard more than 1 time but it needs a min distance of 0.1 s for us to hear.