Answer to Question #129306 in Physics for Someone

Question

A parallel beam of ultrasound has intensity I0 as it enters a muscle. The beam passes through a thickness of 4 cm of fat before the boundary with muscle as shown below. The beam has an intensity of I after passing through a muscle of thickness 5.4cm. I0 is the intensity of ultrasound entering the fat, and I is the intensity of ultrasound after travelling though the muscle. Linear absorption for fat is 0.48 m-1 and for muscle is 17. Acoustic impedance 10^6kgm-2s-1 for fat is 1.4 and for muscle is 1.72.

Answer 1

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