Question

differentiate between ultrasonic 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.

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Answer 2

Ultrasonic sound are those sound which are more than 20,000Hz and infrasonic sound are those sound which are less than 20Hz.