write two application of ultrasound
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[Uses of ultrasonic vibrations] :-
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.
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.
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In objects with parts that are difficult to reach, for example, spiral tubes and electronic components, the process of ultrasonic cleaning is used. Here, the object is dipped in a solution of suitable cleaning material and ultrasonic waves are passed into it. As a result of this, high-frequency waves are generated that cause the dirt and grease to detach from the surface.
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