Elements of natural philosophy (Volume 2-3) (1850)
Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 323
divergent,the red taking the direction of r i?, and the violet thedirection rf 7, making, because of its greater refractiveindex, a greater angle than the red with the normal tothe refracting surface at rr. To an observer whose eyeis situated at E, the point r will appear red, the othercolors… … Order in whichthe colors willappear in theprimary bow; ELEMENTS OF OTTICS. 315 prism felling below the eye. In passing from the firstPrisms rePlaced r -... & by drops of to the second position, the prism would, therefore, pre-water;sent, in succession, all the colors of the solar spectrum.If,…
Mechanics · Acoustics · Optics
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