Question

Which of the following facts about echolocation is correct?

• A. Echolocation is the use of sound waves and echoes to determine where objects are in space
  
• B. The minimum distance required for echolocation to take place is 16.5 m
• C. Bats use echolocation
• D. All of the above

Answer 1

The correct option is D All of the above

Echolocation is a technique used by bats, dolphins and other animals to determine the location of objects using reflected sound waves which were generated by these organisms. This allows the animals to move around in pitch darkness, so they can navigate, hunt, identify friends and enemies, and avoid obstacles.

To hear the echo clearly in the air, the reflecting surface should be at a minimum distance of 16.5m from the source of sound.Hence minimum distance required for echolocation to take place is 16.5m.