a) White light is normally incident on two glass microscopeslides with a thin la

Question

a) White light is normally incident on two glass microscopeslides with a thin layer of air of variable thickness between theslides, as seen in the figure below. Which wavelengths interfereconstructively when reflected at a point where the air layeris 830 nm thick? (Give theanswer as a comma separated list. Round your answer to the nearestwhole number.)

b) Calculate Brewster's anglefor light incident from diamond into air if the glass has an indexof 2.409.

b) Calculate Brewster's anglefor light incident from diamond into air if the glass has an indexof 2.409.

Explanation / Answer

t = 830 nm a) 2t + /2 = k = 4t/(2k - 1) = 664, 474 nm b) = tan-1(2.409) = 67.5o

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