the direction BC,where it is again refracted along CD\ and to an eye at D, the object at Awill appear to beat F, At both sur-faces the light isbent toward the base^^^- 72- of the prism. Dispersion is shown by the following : — Experiment 66. — In a thick piece of paper cut a slit an inch longand… … horizontally in the path of this light, the light will be refracted upward,and if it be caught upon a screen, it will appear as a band of light ofvarious colors passing by delicate gradations from violet at the topthrough indigo, blue, green, yellow, and orange to red at the bottom. The Solar…
Physics
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