. The principles of physics. 330. Synthesis of white light. — The composition of whitelight has been ascertained by the process of analysis; it canbe verified hy synthesis; the colors after dispersion maybe reunited, and the result of the reunion is white light. Experiment 4. — Place a second prism (2) in such a position /^ thatlight which has passed through one prism (1), and been refracted anddecomposed, may be refracted back, and the colors will be reblended,and a white image of the slit will be restored on the screen. Experiment 5. — Place a large convex lens, or a concave mirror(bett
. The principles of physics. 330. Synthesis of white light. — The composition of whitelight has been ascertained by the process of analysis; it canbe verified hy synthesis; the colors after dispersion maybe reunited, and the result of the reunion is white light. Experiment 4. — Place a second prism (2) in such a position /^ thatlight which has passed through one prism (1), and been refracted anddecomposed, may be refracted back, and the colors will be reblended,and a white image of the slit will be restored on the screen. Experiment 5. — Place a large convex lens, or a concave mirror(better a concave cylindrical mirror), so as to receive the colors after dis-persion by a prism, and bring the rays to a focus on a screen. Theimage produced will be white. Experiment 6.—Receive the spectrum on a common plane mirror,and rapidly tip the mirror back and forth in small arcs, and the lightreflected by the mirror upon a screen will produce a white image on thescreen. 331. The rainboiv. — The rainbow is a sol
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectphysics, bookyear1895
