What is infrasonic, sonic and ultrasonic?
what is the range of hertz in them?
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Answer:
infrasonic means below 20db,Sonic means between 20db -20000db,ultrasonic means above 20000 db
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Audible sound waves whose frequencies are less than 20 Hz are in the infrasonic range. Sound produced by earthquakes, thunder, volcanoes are in Infrasonic range. Human Ear cant hear this sound but elephants and whales can hear this.
Frequencies above 20,000 Hz are in the ultrasonic range. The audible range of dogs, cats, moths and mice extends into ultrasound frequencies. They can hear very high frequencies that humans cannot.
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