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What are ultrasonic? - Physics

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What are ultrasonic?

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Solution

Ultrasonic are sounds having frequency higher that 20 KHz and not audible to the human being.

Concept: Infrasonic, Sonic, Ultrasonic Frequencies and Their Applications
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APPEARS IN

Frank Class 9 Physics ICSE
Chapter 7 Sound
Exercise | Q 13 | Page 286
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