• It is used for medical diagnosis and therapy and also as a surgical tool.
• Bats and porpoises use ultrasound for navigation and to locate food in darkness.
• It is used to detect defective foetus.
• It is used as a tool in the treatment of muscular pain.
• Ultra sonography (is a technique of 3-dimensional photographs with the help of ultrasonic waves) is used to locate the exact position of an eye tumour.
• Ultrasound is generally used to clean spiral tubes,electronic components etc.
• Ultrasound are used to detect cracks and flaws in metal blocks.
