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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

20 kHz

, and below

20 Hz

, humans cannot be able to hear sound.

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