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Q.

Waves of frequency higher than frequency 20 kHz are known as ____.


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Detailed Solution

Waves of frequency higher than the frequency of 20 kHz are known as ultrasonic waves.
The range below 20 Hz is known as infrasonic sound waves, and if sound waves lie at a frequency above 20 kHz, the wave is known as ultrasonic.
Humans can hear sound waves of frequency ranges from 20 Hz to 20 kHz, and below 20 Hz, humans cannot be able to hear sound.
 
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