Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 512
ns in a planeperpendicular to the plane of the gra-duated circle. Lastly, there is a smallpolished metallic mirror, ;//, placedhorizontally in the centre of the circle.In making the experiment, a pencilof solar or any suitable artificial light,S, is caused to fall on the mirrorM, which is so… … Fig. 451. by moving P until an image of the aperture is found in its centre. Thenumber of degrees comprised in the arc AN is then read off, and likewisethat in AP ; these being equal, it follows that the angle of reflection .\wPis equal to the angle of incidence .X/z/M. The second law follows from…
Physics
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