Bats detect obstacles in their path by receiving the reflected

Bats detect obstacles in their path by receiving the reflected

  1. Infrasonic waves
  2. Ultrasonic waves
  3. Radio waves
  4. Microwaves

Answer

Bats are one of the few mammals that can use sound to navigate (this is called echolocation - the location of objects by reflected sound). Bats produce echolocation sounds, which are usually ultrasonic, ranging in frequency from 20 kilohertz (kHz) to 200 kHz.

The ears and brain cells in bats are especially tuned to the frequencies of the sounds they emit and the echoes that result.

The correct option is B.