Chrome File Edit View History Bookmarks People Window Help Mon 1:07 PM 42% Chapt

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Chrome File Edit View History Bookmarks People Window Help Mon 1:07 PM 42% Chapter 22 reflection and re x C www.webassign ne /web/Student/Assignment Responses/last?dep 5626841 Q4 45.0° Need Help? Read It 4, -1 points SerCP10 22.P 022. WI My Notes Ask Your Teacher A narrow beam of ultrasonic waves reflects off the liver tumor in the figure below. If the speed of the wave is 20.2% less in the liver than in the surrounding medium, determine the depth of the tumor. 12.0 cm Liver Need Help? Read It L Watch It Submit Answer Save Progress Practice Another Version 5. -1 points SerCP10 22.P 027 MI-FB My Notes Ask Your Teacher

Explanation / Answer

By snell's law,

Sin 50/Sin r=1/(1-0.202)

Sin 50/Sin r=1.25

r=37.79 degrees.

Let h be the depth.

2h*tanr=12

2*htan(37.79)=12

h=7.74cm

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