. Chamber's scientific reader : illustrated with wood engravings. Readers. 26 Fig. 25. now be stated thusâThe incident ray, the normal, and the reflected ray are all in one plane. Again, eclc is called the angle of incidence, and cdb the angle of reflection; and the second law of reflection isâThe angle of reflec- tion is equal to the angle of incidence. Two other facts will now he easily understood. 1. Rays of light that fall on a reflecting surface parallel to each, will be reflected parallel to each other. Kays being reflected from a surface at tlu same angle as they fall upon it,
. Chamber's scientific reader : illustrated with wood engravings. Readers. 26 Fig. 25. now be stated thusâThe incident ray, the normal, and the reflected ray are all in one plane. Again, eclc is called the angle of incidence, and cdb the angle of reflection; and the second law of reflection isâThe angle of reflec- tion is equal to the angle of incidence. Two other facts will now he easily understood. 1. Rays of light that fall on a reflecting surface parallel to each, will be reflected parallel to each other. Kays being reflected from a surface at tlu same angle as they fall upon it, it is evident that after reflection they must remain parallel. If P and Q (fig. 25) are parallel when they fall on CD, R and S will also be parallel. 2. When divergent1 rays, or rays that spread out from a point, fall on a mirror, the point from which 'the reflected rays seem to proceed, is on the opposite side of the mirror, and at a distance equal to the distance of the point from which the rays actually pro- ceed. Thus, let rays, diverging from the point Q (fig. 26), fall on a mirror at A and B, and be reflected in the direction â p. og of R and S ; the point q, from which they seem to proceed, is on the opposite side of the mirror, and the distance N# is equal to the distance Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original London : W. & R. Chambers
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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherlondo, bookyear1872
