what is ultrasonic with definition
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Ultrasonic are the waves which has higher frequency that cannot be detected by human ear
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the definition of ultrasonic
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suraj20041:
The term "ultrasonic" applied to sound refers to anything above the frequencies of audible sound, and nominally includes anything over 20,000 Hz. Frequencies used for medical diagnostic ultrasound scans extend to 10 MHz and beyond.
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