What is the frequency range of Ultrasonics?

What is the frequency range of Ultrasonics?


2 Answers

Arun Kumar IIT Delhi
askIITians Faculty 256 Points
9 years ago
47 Points
9 years ago
Ultrasound frequencies range from 20 kHz (the upper range of hearing for a young adult human) through 150 kHz (audible to some bats and other creatures), right up to 10 MHz (used in some medical treatments and industrial cleaning applications). While these frequencies overlap with those of radio waves, they are different because sound and ultrasound are vibrations in the air, while radio waves are electromagnetic waves that can travel in a vacuum.

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