Wright, Mark R., 1854- · London : Longmans · leaf 119
no Light the water at c. The refraction of the beam is distinctly seen. Youwill not fail to observe that part of the beam is reflected as c R. When light passes from air to a denser medium, part is bent towards the normal, and isrefracted, part is reflectedand part is absorbed. The law of sines.—?^… … — always gives the E C same number—in this experiment as nearly as possible -4- 3This number is called the index of refraction for air and water j from air to glass it is -^. 2 The laws of refraction are :— I. The incident ray, the refracted ray, and the normal are in one plane. 2. The number…
Physics
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