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प्रश्न
Give one main application of Ultrasound
उत्तर
Ultrasound: Ultrasound waves are high-frequency sound waves, which are beamed into the body
and the returning echoes, converted to electric signals are detected. The ultrasound waves pass
through a homogenous tissue but when they strike another tissue or organ a reflection takes place depending on the densities of the two tissue. It is used to detect foetal growth, diseases of the heart, kidney, gallbladder, etc
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