Solving a problem in physics section 42 point 64 optics

Solving a problem in physics section 42 point 64 optics

64. The quartz plate thickness d1 = 2 mm, cut perpendicular to the optical axis of the crystal rotates the plane of polarization of monochromatic light of a certain wavelength at φ1 = angle of 30 °. Determine the thickness d2 of the quartz plate placed between the parallel Nicol to the monochromatic light is quenched completely.

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