The drawing shows a ray of light traveling through three materials whose surface

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

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 isna = 1.20. The angles of refraction in materials b and c are, respectively, 39.8? and 53.8?. Find the indices of refraction in these two media.

Explanation / Answer

Snell's Law is used here.

n1 sin i1 = n2 sin i2 = n3 sin i3

1.20*sin 50 = n2*sin 39.8

n2 = Refractive index of material b =1.436

1.436 sin 39.8 = n3 sin 53.8

n3 = Refractive index of material c = 1.139

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