The sounds having too high frequency which cannot be heard by human ear are called ultrasonic sounds. The sounds of frequency greater than 20,000 hertz are called ultrasonic. The ultrasonic sounds cannot be heard by human beings. The human beings can neither produce ultrasonic sound nor can they hear ultrasonic sounds.
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Answer:
The sounds having too high frequency which cannot be heard by human ear are called ultrasonic sounds. The sounds of frequency greater than 20,000 hertz are called ultrasonic. The ultrasonic sounds cannot be heard by human beings. The human beings can neither produce ultrasonic sound nor can they hear ultrasonic sounds.
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Good Afternoon,
Ultrasonic sounds are sounds with are not audible to the human ear. Sounds higher than 20 hertz are termed as ultrasonic sounds
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