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Sound Waves (Sound waves are produced when vibrating object alternately…
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Pitch and Frequency
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Longer the string of the instrument,the lower the pitch
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Ultrasound
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Examines tissues, organs, cancer and the foetuses
Involves sending the ultrasound waves into the body of the patient and detecting the reflected ultrasound
Sonar is a technique of using ultrasound to locate underwater objects, using echo-sounding
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Speed of sounds
Speed of sounds differs in solids, liquids and gases
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