Light of wavelength 630 nm in vacuum, falling normally on a biological specimen

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Question

Light of wavelength 630 nm in vacuum, falling normally on a biological specimen of thickness
10 ïm, splits into two beams that are polarized at right angles. The refractive index of the tissue for
the two polarizations are 1.32 and 1.333. When the two beams emerge, they are out of phase by

Options:

A . 0.13o

B . 74.3o

C . 90.0o

D . 128.6o

Answer: Option B

-NA-

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