Problem 40488.

Problem 40488.

There is a thin film of transparent material. When illuminated with monochromatic light, the rays of which are perpendicular to the surface of the film, parallel alternating dark and light stripes are visible on it at equal distances from each other. What can you say about the thickness of such a film?

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Detailed solution with a brief record of the conditions, formulas and laws used in the solution, derivation of the calculation formula and answer.
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