Question

Bats detect the obstacle in their path by receiving the detected:

• A. infrasonic waves
• B. ultrasonic waves
• C. both
• D. none

Answer 1

The correct option is B ultrasonic waves

Bats can produce ultrasonic waves by flapping their wings.
They can also detect these waves.these waves produced by the bats after reflection from the obstacles like building guide them to remain away from the obstacles during night with the help of ultrasonic waves.