Solving a problem in physics section 51 point 67 optics

Solving a problem in physics section 51 point 67 optics

67. On the lens having a refractive index of 1.55 is normally incident monochromatic light with a wavelength of 0.55 microns. To eliminate loss of reflected light is applied to the lens thin film. To determine: 1) the optimal refractive index of the film; 2) the film thickness

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