Задача 40846.

A ray of light passes from the silica into the liquid, partially reflecting, partially refracted. The reflected beam is polarized at a maximum angle of incidence of 43 ° 6 ´. Determine the refractive index of the liquid and the speed of light in it.

Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
If you have any questions about the decision to write. I try to help.