Question

The drawing shows a ray of light traveling through three materials whose surfaces are parallel to each other. The refracted rays (but not the reflected rays) are shown as the light passes through each material. A ray of light strikes the a–b interface at a 50.0˚ angle of incidence. The index of refraction of material a is na = 1.20. The angles of refraction in materials b and c are, respectively, 38.7˚ and 58.1˚. Find the indices of refraction in these two media.

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n_b =Number:

Units: diopter , s , No units , ° (degrees) kg, 1/m

n_c =Number

Units: diopter , s , No units , ° (degrees) kg, 1/m

Answer 1

02 борбу Du Ь biven that; = 50° na = 1.2 02 = 38.7, Dy= 58.1° - Applying Irell's law at a-b is tesface Sinon - no = na inoe Sin 2 - 1.2 Sin (50) Sin 138.7) b=1.47 figure; from the geometry of Os = 0 = 38.7 SO, applying Pell's law at boc interface

Sin On = 9; 0ч п, = ne Пь . е, Sini Oy = 1.11 .S; 34.7) Sin (581) = 1.be
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