Answers

2015-07-13T12:13:52+05:30
Reflection of sound is also known as echo. In this process you hear a voice repeatedly for 2 or 3 seconds after making a large sound. You must have at least 16 m of distance b\w you and reflecting surface. Also there should be no sound absorbing substances near u. U could hear it when u go to mountain at the peak and shout as loud as u could.
0