Задача 40663.

On the soap film falls a white light at an angle of 30 ° to the surface of the plate. At least some of the film thickness d of the reflected beams are painted yellow (lambda = 585 nm)? The refractive index of soapy water n = 1.33.

Detailed solution shorthand terms, formulas and laws used in the decision, the withdrawal of the calculation formula and the response.
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