what is different between infrasonic and ultrasonic sound ?
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Explanation:
Infrasonic:
It has frequency less than the audible frequency range.
Less than 20 Hz
Sonic:
it has the frequency equal to the audible frequency range. .Between 20 Hz to 20000 Hz
Ultrasonic:
It has the frequency greater than the audible frequency rangeMore than 20000 Hz
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