Explain how the speed of sound can be determined by the method of echo?
143 Likes
Answered By
74 Likes
A man is standing at a distance of 12 m from a cliff. Will he be able to hear a clear echo of his sound ? Give a reason for your answer.
State two applications of echo.
State the use of echo by a bat, dolphin and fisherman.
How do bats avoid obstacles in their way, when in flight?