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List the applications of sound....

List the applications of sound.

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Applications of ultrasound
• Ultra sound can be used in cleaning technology. Minute foreign particles can be removed from objects placed in a liquid bath through which ultrasound is passed.
• Ultrasounds can also be used to detect cracks and flaws in metal blocks.
• Ultrasonic waves are made to reflect from various parts of the heart and form the image of the heart. This technique is called .echo cardiography..
• Ultrasound may be employed to break small .stones. formed in the kidney into fine grains. These grains later get flushed out with urine.
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