Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 24
n image O , while the ray OA, which has undergonetwo reflections at A and B, gives the third image O. When the angle of the mirror is60°, five images are produced, and seven if it be 45°. The number of image continues toincrease in proportion as the angle diminishes, and when it is zero (mirrors… … 3,769.—Position of image in a plain mirror. Let a candle be placed exactly as far in frontof a pane of window glass as a bottle full of water is behind it, both objects being on aperpendicular drawn through the glass. The candle will appear to be burning inside thewater. This experiment explains a…
Electrical engineering
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