Задача 40380.

Towards monochromatic light with a wavelength of 0.6 microns is a plane-parallel glass plate 0.1 mm thick. Light falls on the plate normal. At any angle, turn plate, the optical path length is changed to lambda / 2, if the refractive index of the plate n = 1,5?

Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
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