1. As shown in figure, a layer of water covers a slab of material X in a beaker.

Question

1. As shown in figure, a layer of water covers a slab of material X in a beaker. A ray of light traveling upward follows the path indicated. Using the information on the figure, find:

a) The index of refraction of material X .

b) What would be the minimum incidence angle at the surface material X-water for which light would not be transmitted into water?

c) Suppose on top of the water there is again a slab of material X. What should be the angle with the normal at the top water-material X interface, if reflected light into water were to be completely polarized?

d) If material X were silicate flint glass, find the angular dispersion between red and violet colors transmitted into water. Index of refraction for red color is 1.62 and for violet color is 1.67.

Explanation / Answer

A) n = 2.34

B) 25.31

C) polarization shouldn't effect the angles of refraction

D) 1.06783 degrees

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