Question

The sounds having frequency of $20$ Hz to $20,000$ Hz are

• A. Ultrasound
• B. Infrasonics
• C. Hypersonics
• D. Audible Sounds

Answer 1

Answer: (D)

Audible Sounds

In the case of sound waves, having frequency in between $20$ Hz and $20,000$ Hz, called audible sound and waves of frequency smaller than $20$ Hz are called infrasonic and waves having frequency greater then $20,000$ Hz, called Hypersonics sounds.