Physics
Answer
Bats fly with speed much lower than the speed of sound. The sounds produced by the flying bats gets reflected back from an obstacle in front of it. By hearing the echo, the bats come to know, even in the dark, the location of the obstacle, so they turn from their path and fly safely without colliding with it. This process of detecting obstacle is called sound ranging.
Bats can produce and detect the sound of very high frequency up to about 100 kHz.
Related Questions
Explain how the speed of sound can be determined by the method of echo?
State the use of echo by a bat, dolphin and fisherman.
What is meant by sound ranging? Give one use of sound ranging.
Name the waves used for sound ranging. State one reason for their use. Why are the waves mentioned by you not audible to us?