write some uses of ultrasonic sound
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Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing. ...Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz. Ultrasound is used in many different fields. Ultrasonic devices areused to detect objects and measure distances.
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It is used detect cracks and flaws in metal blocks.
It is used to clean hard to reach places.
It is used to break stones in stomach
.
It is used to clean hard to reach places.
It is used to break stones in stomach
.
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