Lynde, Carleton John, b. 1872, Gilbert, Alfred C. (Alfred Carlton), 1884-1961 · New Haven, Conn. : A.C. Gilbert Co. · leaf 110
Fig. 163, Parallel waves and rays are diverged GILBERT LIGHT EXPERIMENTS 107 at a distance greaterthan the focal length. If the light is atthe focus (2, Fig. 164),the curvature of thewaves is so alteredthat they are parallelafter they passthrough the lens. If the light isnearer to the lens thanthe… … Fig. 164. Light and a converging lens FUN BY DAY OR NIGHTExperiment No. 105. Images. Arrange a candle, 4-inch con-verging lens, and screen as in Fig. 165. Place the lighted candle 3 feet from the lensand move the screenuntil you get an image.Is it inverted andsmall ? Repeat withcandle at 2 feet and…
Light · Scientific recreations
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