Solving a problem in physics section 2 point 36 optics

Solving a problem in physics section 2 point 36 optics

36. On the path of a ray interference refractometer placed an evacuated tube 10 cm long. When filling the tube with chlorine interference pattern is shifted by 131 strip. To determine the refractive index nx of chlorine if the observation was carried out with monochromatic light with a wavelength of 0.59 microns

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