differentiate b/w ultrasound and sonic sound .
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Ultrasonic waves are acoustic waves that are so high in frequency that humans can't hear them; however, infrasonic waves are sound waves that are lower in frequency than what humans can hear. A subsonic wave is a wave that is traveling slower than the speed of sound and a supersonic waves travels faster.aug 23 friday i answered this question
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ultrasound is the sound above 20000 hertz which cannot be audible for the normal human ear.
(it is not Sonic sound it is infrasonic sound)
Infrasonic sound is the sound below 20 hertz which is very low for humans to hear.
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