Task 40279.
Two plane-parallel glass plates form a wedge with an angle of 30 ´´. The space between the plates is filled with liquid (n = 1.4). A beam of monochromatic light with a wavelength of 500 nm is incident normally on its surface onto the wedge. In reflected light, an interference pattern is observed. What is the number of dark interference fringes per 1 cm of wedge length?
A detailed solution with a brief record of the conditions, formulas and laws used in the solution, the derivation of the calculation formula and the answer.
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