If no gel is used between an ultrasound transducer and the skin, what percentage of the...
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If no gel is used between an ultrasound transducer and the skin, what percentage of the incident sound intensity passing through the air between the ultrasound transducer and the skin will be transmitted into the skin? Assume an acoustic impedance of air of 4 x 103 g cm 2 s 1, skin of 1 x 10°g cm 2 s1, and gel of 1.5 x 10° g cm 2 s1. Select the closest answer: O 100% O 98% O 96% O 4% 2% If no gel is used between an ultrasound transducer and the skin, what percentage of the incident sound intensity passing through the air between the ultrasound transducer and the skin will be transmitted into the skin? Assume an acoustic impedance of air of 4 x 103 g cm 2 s 1, skin of 1 x 10°g cm 2 s1, and gel of 1.5 x 10° g cm 2 s1. Select the closest answer: O 100% O 98% O 96% O 4% 2%
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