Question

What is ultrasonic waves?Name one animal which emits ultrasonic waves and how does it use the waves

Answer 1

Ultrasonic waves are those waves which have frequency more than 20 kHz. Bats use ultrasonic waves to fly and search for their prey at night without colliding. Bat produces ultrasound waves in the direction of its way and hear back the echoes produced by reflection of the waves while striking the object in the path.