Задача 40940.

The light beam propagates in the glass with a refractive index n = 1,5. On his way meets a gap filled with air. Facets are flat and parallel to the slit, the distance between the edges is equal to d = 3 cm, the angle of incidence of the beam on a facet 30 °. How far it will move the light beam, released from the slot, for the continuation of the incident beam?

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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