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What is the principle of generating ultrasonic waves?
The general principle comprised in generating ultrasonic waves is to reasons some dense material to vibrate very quickly. The vibrations produced through this material than reason air surrounding the material to start vibrating along with the same frequency. Then vibrations spread out into the form of ultrasonic waves.
(1) The first practical application for piezoelectric devices was sonar, first developed during worldwar1. Piezoelectric materials are as a source of ultrasonic waves. At sea, they
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WHAT IS THE FREQUENCY OF ULTRA SONICS
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