Задача 40969.

The light beam propagated in air with a frequency of 6 * 10 ^ 14 Hz, divided into two beams. Specify the result of the addition of these rays, if the first of them travels a path of 4.5 microns in a medium with a dielectric constant e = 4, and the second - 8.5 microns in air.

A detailed solution with a brief record of the conditions, formulas and laws used in the decision, the conclusion of the calculation formula and the answer.
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