• Medical Imaging: Ultrasound is widely used in the medical field for imaging internal body structures. It is used to detect and diagnose a variety of medical conditions, including pregnancy, tumors, and cysts.



• Physical Therapy: Ultrasound is often used in physical therapy to treat soft tissue injuries, such as muscle strains and sprains. The high-frequency sound waves help to increase blood flow to the affected area, which can speed up healing.



• Dentistry: Ultrasound is used in dentistry to clean teeth and remove plaque and tartar. The high-frequency sound waves can help to break up and remove hard deposits on the teeth without damaging the surrounding tissue.



• Industrial Testing: Ultrasound is used in industrial testing to detect flaws and defects in materials, such as metals and plastics. It can also be used to measure the thickness of materials and to detect leaks in pipes and other structures.



• Food Processing: Ultrasound is used in the food processing industry to detect defects in products, such as cracks in eggs and air pockets in baked goods. It can also be used to measure the thickness of food products and to detect foreign objects in packaged foods.



• Cleaning: Ultrasound is used in cleaning applications to remove dirt and contaminants from a variety of surfaces, including jewelry, electronic components, and medical equipment. The high-frequency sound waves can help to dislodge and remove particles that are difficult to reach with traditional cleaning methods.

Overall, ultrasound has a wide range of applications in various fields due to its non-invasive nature and ability to penetrate through different materials. It has become an essential tool in many industries and continues to be an area of active research and development.

I) In dish washing machines, water and detergent are made to vibrate with the help of ultrasonic vibrators. Thus, vibrating detergent particles rub against the dirty utensils and clean them.

ii) Ultrasonic vibrators are used to drive rats and cockroaches away from godowns.

iii) Ultrasonic vibrations are used for making image of internal organs of human body. They can be used to study the growth of foetus in mother's womb.

iv) 'Stones' in kidneys can easily be broken down into fine grains by making use of ultrasounds. So, these days there is no need to operate the kidney for taking out the stones.

v) Ultrasonic vibrations are given to the patients to relieve from pain in joints and muscles.

vi) We can make use of ultrasonic vibrations for homogenising the milk . By use of these vibrations larger particles of fat present in milk are broken down to smaller particles.