Question

Differentiate between infrasonic and ultrasonic.according to 8th class​

Answer 1

Answer:

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

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Infrasound is sound that is below the lower limit of human hearing, below 20 Hz, and ultrasound is above the upper limit of human hearing, above 20,000 Hz. Infrasonic Sound has a frequency less than the audible frequency range. Less than 20 Hz. ... Ultrasonic Sound has a frequency greater than the audible frequency range