Question

Distinguish between infrasonic and ultrasonic sound

Answer 1

The sounds of frequency less than 20Hz are called infrasonics. The infrasonic sounds have below the lower limit of human hearing. The sound of frequency more than 20,000Hz are called ultrasonics. ultrasonic sounds have a frequency above the upper limit of human hearing.

Answer 2

Hey mate..

Ultrasonic waves are acoustic waves that are so high in frequency that humans can't hear them;

however, infrasonic waves are sound waves that are lower in frequency than what humans can hear. A subsonic wave is a wave that is traveling slower than the speed of sound and a supersonic waves travels faster.

hope this helped u. ..!