Question

State whether the given statement is True or False :

Humans can neither hear infrasonic nor ultrasonic sounds.

• A. True
• B. False

Answer 1

The correct option is A True

Audible range of frequency for human ear is $20Hz$ to $20kHz$. Humans cannot hear sounds having frequency other than this range.
Sounds having frequency lower than $20Hz$ are known as infrasonic sounds and that having frequency greater than $20kHz$ are known as ultrasonic sounds. Thus, humans can neither hear infrasonic nor ultrasonic sounds.