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What are ultrasonic? State and explain two applications of ultrasounds. - Physics

Short Note

What are ultrasonic? State and explain two applications of ultrasounds.

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Solution

Ultrasonic sound is the sound having frequency more than 20KHz. The application of ultrasonic sound is as follows:
(i) It is used to detect the flaws in metal casting of automobile tyres.
(ii) Used in hospitals to detect defects in certain parts of the body.

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

Frank Class 9 Physics ICSE
Chapter 7 Sound
Exercise | Q 34 | Page 286
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