Physics, 30.06.2019 11:30, golderhadashaowtatz

Ultrasonic imaging is made possible due to the fact that a sound wave is partially reflected whenever it hits a boundary between two materials with different densities within the body. the percentage of the wave reflected when traveling from material 1 into material 2 is r=(ρ1−ρ2ρ1+ρ2)2. knowing this, why does the technician apply ultrasound gel to the patient before beginning the examination?

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Ultrasonic imaging is made possible due to the fact that a sound wave is partially reflected wheneve...