A very sharp wedge of glass of index of refraction
1.50 is introduced perpendicularly in the path of one of the
interfering beams
of Michelson interferometer illuminated by a narrow beam of light
of
wavelength 0.500 ?m. This causes 600 dark fringes to sweep across
the
field of view. Calculate the thickness of the glass wedge at the
point
where the beam passes through it.
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