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What are ultrasonic and infrasonic sound waves? CBSE/ICSE/NCERT
Category: Education
Difference between ultrasonic and infrasonic sound - A frequency of less than 20Hz is considered to be an infrasonic sound Infrasonic sounds have a frequency that is below the range of human hearing ability Ultrasonics are sounds that have a frequency greater than 20,000-hertz cycles per second
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