echo is produced by reflection of sound .Echo is produced when reflecting object is 17.2m far from sound producing object.
2
Theertha Vinod answered this
Echo is the single reflection of sound caused in an open environment or surrounding. The factors affecting echo are: 1) The minimum distance between the sound producing object and the receiver must be 17.2 m. 2) The maximum time taken for the sound to be received is 0.1 second. Hope you understood the concept. Cheers!
2
Bharat Dudi answered this
sound which is caused by reflection of sound waves is called echo.
3
Chimata Savita answered this
reflection of sound from any obstructing suface that is a non-absorbent of sound is echo.it is also said that echo is imitation of sound.
hope this helps you
