Question

How does a bat make use of ultrasonic wave to find its way?

Answer 1

when bat leaves ultrasonic waves these ways go and if there is any obstacles it will reflect back
by this bats understand that there is a obstacle

Answer 2

first from it's eyes it pass ultrasonic waves when ultrasonic waves reflect back to it there is something in front of. it like this it find it's wave........



it is in 9th STD science book
search properly u may find