 | 1883 - 1048 pages
...errors. The instrument is based upon the laws of reflection, the second law of which teaches us : " The incident and reflected rays are both in the same...which is perpendicular to the reflecting surface." Therefore a raj parallel to the plane of the sextant, can never be reflected unless the mirrors are... | |
 | John Hughes Bennett - 1870 - 466 pages
...angle of incidence, and the angle ADE, the angle of reflection. The • angle of reflection is always equal to the angle of incidence, and the incident...which is perpendicular to the reflecting surface. A certain amount of light is, however, lost, as the quantity in the reflected ray is less than in the... | |
 | Sidney Augustus Norton - 1870 - 492 pages
...carefully measured, it will be found that 1. The angle of incidence is equal to ihe angle of reflection. 2. The incident and reflected rays are both in the same...which is perpendicular to the reflecting surface. 454. These laws apply to every reflecting point of incidence. There may be two modes of reflection:... | |
 | Amédée Guillemin - 1872 - 756 pages
...— The. angle of incidence is equal to tJie angle of reflection. Tlte incident and the reflected ray are both in the same, plane, which is perpendicular to the reflecting surface. These are two very simple laws, but they suffice to offer an explanation of the most complex phenomena,... | |
 | Adolphe Ganot - 1872 - 588 pages
...The angle of reflection is equal to the angle of incidence. II. The incident and the reflected ray are both in the same plane, which is perpendicular to the reflecting surface. First proof. The two laws may be demonstrated by the apparatus represented in fig. 2i1. It consists... | |
 | Adolphe Ganot, Edmund Atkinson - 1872 - 552 pages
...The angle of reflection is equal to the angle of incidence. II. The incident and the reflected ray are both in the same plane, which is perpendicular to the reflecting surface. First proof. The two laws may be demonstrated by the apparatus represented in fig. 21 1. It consists... | |
 | Adolphe Ganot - 1877 - 976 pages
...of reflection is equal to the angle of incidence. Fig. 381. II. The incident and the reflected ray are both in the same plane, which is perpendicular to the reflecting surface, The words are here used in the same sense as in article 399, and need no further explanation. First... | |
 | Elroy McKendree Avery - 1878 - 480 pages
...accordance with the following laws: (1.) The angle of incidence is equal to the angle of reflection. (2.) The incident and reflected rays are both in the same...which is perpendicular to the reflecting surface. (a.) Fill a basin to the brim with mercury or with water blackened with a little ink. In this liquid... | |
 | John A. Bower - 1879 - 186 pages
...light itself, be it from the sun or any other form of light. 2. The incident and the reflected ray are both in the same plane, which is perpendicular to the reflecting surface. We hope these two laws are sufficiently intelligible to our young readers without more explanation... | |
 | 1896 - 654 pages
...rules: First, the angle of reflection is equal to the angle of incidence. Second, the incidence and the reflected rays are both in the same plane, which is perpendicular to the reflecting surface. In the Camera — The matter of keeping stray light from striking the sensitive plate is of so much... | |
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The incident and the reflected ray are both in the same plane, which is perpendicular to the reflecting surface. 
