A crystal of calcite placed upon a grid pattern to demonstrate the phenomenon of double refraction,or birefringence,the formation of two refracted rays from a single incident ray. The two refracted rays,called the ordinary and extraordinary rays,are polarized at right angles to one another. The ordinary ray obeys the normal laws of refraction while the extraordinary ray follows different laws. Hence two images are formed | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / FUNDAMENTAL PHOTOS / PAUL SILVERMAN |
Taille de l’image : | 4741 px × 3239 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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