Solved: One arm of a Michelson interferometer is 42.5 cm long and is enclosed in a box
Chapter 32, Problem 55(choose chapter or problem)
One arm of a Michelson interferometer is 42.5 cm long and is enclosed in a box that can be evacuated. The box initially contains air, which is gradually pumped out. In the process, 388 bright fringes pass a point in the viewer. If the interferometer uses light with wavelength 641.6 nm, whats the airs refractive index?
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