Question

What are infrasonic and ultrasonic sounds?

Answer 1

Answer:

the sounds having frequencies greater than 20000 Hz are known as ultrasonic sounds..

the sounds having frequencies less than 20Hz are known as infrasonic sounds..

Answer 2

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The infrasonic sounds have below the lower limit of human hearing. Sources: Volcanoes, Earthquakes, etc. Ultrasonic Sound has a frequency greater than the audible frequency range. Frequencies are more than 20000 Hz. Ultrasonic sounds have a frequency above the upper limit of human hearing.

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