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 522
axis, will not meet, and there is, consequently, no focus. Virtual focus.—There is, lastly, the case in which the point is placed atL, between the principal focus and the mirror (fig. 464). Any ray LM,omitted from the point L, makes with the normal CM an angle of incidenceLMC, greater than FMC ;… … and, consecjuently, form no conjugate focus; but if they are conceived to beprolonged on the other side of the mirror, their prolongations will intersectin the same point, /, on the axis, and the eye experiences the same impressionas if the rays were directly emitted from the point /. Hence a…
Physics
Internet Archive · University of Connecticut Library · Public Domain Mark 1.0. Free to use for anything.
