Question

Give difference between Audible sound and Infrasonic 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

The sound which has a freq. less than 20 Hz is infrasonic and the one with more than 2000 Hz freq is ultrasonic