A normal Human beings can hear sound frequency between 20 Hz and 20,000 Hz. Frequency higher than 20,000 Hz is called Ultrasonic and lower than 20 Hz is called infrasonic and both ultrasonic and infrasonic frequencies can’t be heard by an ordinary human.
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A normal Human beings can hear sound frequency between 20 Hz and 20,000 Hz. Frequency higher than 20,000 Hz is called Ultrasonic and lower than 20 Hz is called infrasonic and both ultrasonic and infrasonic frequencies can’t be heard by an ordinary human.