difference between ultrasonic and infrasonic sound 2 difference
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how many differences is to give
riyamchand123:
2 difference
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vgThe sounds of frequency less than 20Hz are called infrasonics. The infrasonic sounds have below the lower limit of human hearing. The sound of frequency more than 20,000Hz are called ultrasonics. ultrasonic sounds have a frequency above the upper limit of human hearing.
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