Lag1989 problem number 22.12

Lag1989 problem number 22.12

A beam of flatly polarized light, the wavelength of which in the vacuum is 2980 Å, falls on a plate of Iceland spar perpendicular to its optical axis. Find the wavelengths of ordinary and extraordinary rays in a crystal, if the refractive indices of Iceland spar for ordinary and extraordinary rays are equal to 1.66 and 1.49 respectively.

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