What are infrasonic and ultrasonic sounds?

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asked Oct 16, 2017 in Physics by jisu zahaan (28,760 points) 28 436 1091

What are infrasonic and ultrasonic sounds? 

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answered Oct 16, 2017 by sforrest072 (157,439 points) 63 448 1285

Infrasonic sound has frequency less than 20 Hz and ultrasonic sound has frequency higher than 20 kHz. 

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