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What are infrasonic and ultrasonic sounds? - Physics

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What are infrasonic and ultrasonic sounds?

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Solution

Sound having frequency less than 20Hz is called infrasonic sound. Sound having frequency greater than 20KHz is called ultrasonic sound.

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

Frank Class 9 Physics ICSE
Chapter 7 Sound
Range of Hearing | Q 7 | Page 284
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