Solving a problem in physics section 2 point 42 optics

Solving a problem in physics section 2 point 42 optics

42. In order to measure the refractive index of ammonia in one arm of a Michelson interferometer placed on both sides of the closed evacuated to a high vacuum glass cell length l = 15 cm. When filling cuvette ammonia interference pattern for the wavelength λ = 589 nm shifted to 192 bars. To determine the refractive index n1 of ammonia.

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)