Question:
What is the frequency range of ultrasonic waves?
What is the frequency range of ultrasonic waves?
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This is sound above the highest frequency the human ear can detect.
Updated On: Jul 16, 2026
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Solution and Explanation
The correct answer is above 20000 Hz (20 kHz).
Ultrasonic waves are sound waves with a frequency higher than the upper limit of human hearing, which is about 20000 Hz. Because humans cannot hear these waves, they are called ultrasonic.
These waves are widely used in medical imaging such as ultrasound scans, in cleaning delicate equipment, in sonar for detecting objects underwater, and in industrial testing of materials for cracks or defects.
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