HOW MUCH YOU NEED TO EXPECT YOU'LL PAY FOR A GOOD BIREFRINGENT CRYSTAL

Due to the difference in refractive indices, 1 ray will pass through the crystal in a slower level than the opposite ray. To paraphrase, the velocity on the slower ray will probably be retarded with regard for the more quickly ray. This retardation worth (the relative retardation) could be quantitatively established using the next equation:The pola