What is ultrasound? Explain how defects in a metal block can be detected, using ultrasound and explain how ultrasound is used to clean spiral tubes.
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Ultrasound are waves that have higher frequencies. The sounds of these can not be heard by human beings. Ultrasound is physically similar to other sounds. It can be heard when its range is 20 kilohertz. There are many uses of ultrasounds. It is medically use for diagnosis.
Apart from that it can be used to detect holes or cracks in metal blocks. These can not be seen with naked eye hence these rays are transmitted on the block as they pass through it and show scans of cracks or holes.
These rays can be used for cleaning spiral tubes. When they are passed through it. Dust and oil particles are swept along with the radiation of the ray cleaning the tube.
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