why the type of business which is owned and operate by one man in very commonly Available give the reason why generally this type of business established
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Ultrasound is the sound waves of high frequencies which are used in many fields such as construction, medical field, manufacturing weapons, communication etc.
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Ultrasonic sounds are sound waves of high frequency i.e. higher than 20 KHz. It does not have different properties. It has the same properties of normal sound but has a high frequency. These high frequency sounds are used for measuring distance, cleaning, sonography etc.
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kaun se class ka question hai batao
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