ice is a double refractory.but why its not showing two images?

Dear Vinod,

Factors affecting refractive indices are molecular phase, density, and temperature. The index of refraction for water is and interesting example that is primarily noted. The index of refraction of water as a liquid is 1.333 and as a solid (ice) is to be calculated around 1.309. Experiments on refractive indices in the past showed: almost a linear relationship in the index of refraction and temperature; higher-index materials to be more temperature-sensitive; and refractive index to increase as both the physical and optical density, tendency of atoms to maintain absorbed energy as electrons before becoming electromagnetic waves, of the material increases.

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