Quartz has hexagonal 32 point group symmetry. Its unit cell dimensions are a = 4.914 Å and c = 5.405 Å. It is uniaxial and optically positive. The refractive indices of the slow and fast rays are 1.553 and 1.544, respectively. What is the angle, a, between the ordinary and extraordinary rays? tan(a + 0) = [nw²/ne²]. [cos(90-0)/sin(90-0)]
Quartz has hexagonal 32 point group symmetry. Its unit cell dimensions are a = 4.914 Å and c = 5.405 Å. It is uniaxial and optically positive. The refractive indices of the slow and fast rays are 1.553 and 1.544, respectively. What is the angle, a, between the ordinary and extraordinary rays? tan(a + 0) = [nw²/ne²]. [cos(90-0)/sin(90-0)]
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