 | Denison Olmsted - 1854 - 706 pages
...parallel to the axis, will be reflected into the lines which all meet at one and the same focus. 725. DIVERGING RAYS, incident upon a concave mirror, are...incidence is equal to the angle of reflexion made witfi the radius of concavity.} If the radiant point be further from the mirror than the center, as... | |
 | Denison Olmsted - 1859 - 620 pages
...parallel to the axis, will be reflected into the lines which all meet at one and the same focus. 725. DIVERGING RAYS, incident upon a concave mirror, are...collected into a focus, which changes its situation ax the distance of the radiant from the mirror is changed, conformably to the law, that the angle of... | |
 | John Tyndall - 1870 - 92 pages
...accurately at the candle's distance on the other side of the perpendicular. Prom this it immediately follows that the angle of incidence is> equal to the angle of reflexion. 57. With an artificial horizon of this kind, and employing a theodolite to take the necessary angles,... | |
 | John Tyndall - 1870 - 110 pages
...accurately at the candle's distance on the other side of the perpendicular. From this it immediately follows that the angle of incidence is equal to the angle of reflexion. 57. With an artificial horizon of this kind, and employing a theodolite to take the necessary angles,... | |
 | 1870 - 586 pages
...brilliantly illuminated when the eye was at the distance of a yard from the centre of the rod, thus proving that the angle of incidence is equal to the angle of reflexion. To whatever distance the lamp was shifted from the central thread, the eye had to be placed at a similar... | |
 | Ann M. Brayley - 1870 - 232 pages
...to elaborate its particulars : but we may venture upon some indications of its general significance. That the angle of incidence is equal to the angle of reflexion probably points to the truth, that the conceptions we form of divine and heavenly things, and of their... | |
 | Paul Carus - 1899 - 666 pages
...no further explanation for it — you have simply to accept it as a fact. In text-books of mechanics the law that the angle of incidence is equal to the angle of reflexion is deduced from the law that every action has an equal and opposite reaction (together with a few other... | |
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But these equal angles are the complements of the angles of incidence and reflexion, which are also equal. Wherefore rays, parallel to the axis, will be reflected into the lines which all meet at one and the same focus. 
