work 7 Begin Date: 4/3/2018 2:00:00 PM-Due Date: 4/12/2018 11:59:00 PM End Date:
ID: 2040096 • Letter: W
Question
work 7 Begin Date: 4/3/2018 2:00:00 PM-Due Date: 4/12/2018 11:59:00 PM End Date: 4/13/2018 4:00:00 AM (6%) Problem 2: A ray of light is incident on an air/water interface. The ray makes an angle of 01 33 degrees with respect to the normal of the surface. The index of the air is n- 1 while water is n2 1.33. Home Randomized Variables 01 01-33 degrees n, Ctheexpertt 25% Part (a) Choose an expression for the angle (relative to the normal to the surface) for the ray in the water, 02 Grade Summa Deductions Potential n1 n2 72 n2 n1 Submissions Attempts remain (33% per attemp detailed view ?2 = asin (-1) Submit Hint I give up! Hints: 2% deduction per hint. Hints remaining: 2 Feedback: deduction per feedback. Í 25% Part (b) Numerically, what is the angle in degrees? ? 25% Part (c) Write an expression for the reflection angle y, with respect to the surface. 25% Part (d) Numerically, what is this angle in degrees?
Explanation / Answer
as per snells law
n1*sinx1 = n2*sinx2 ..........(x = theta)
hence, x2 = asin(sinx1*n1/n2)
option b
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