What Are Ultrasonic Waves?

By Staff WriterLast Updated Apr 11, 2020 9:00:40 AM ET
ultrasonic-waves
U.S. Fish and Wildlife Service Headquarters/CC-BY 2.0

Ultrasonic waves are sound waves transmitted above the human-detectable frequency range, usually above 20,000 Hz. They are used by some animals and in medical or industrial technological devices.

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