Elementary treatise on physics, experimental and applied : for the use of colleges and schools (1906)
Ganot, A. (Adolphe), 1804-1887, Atkinson, Edmund, 1831-1901, Reinold, A. W. (Arnold William), 1843-1921 · New York : Wood · leaf 588
iig- 543 tg- 544 traversing the lens, form a diverging pencil, GHMN. Hence there is noreal focus, but the prolongations of these rays cut one another in a point F,which is the principal virtual focus. In the case in which the rays proceed from a point, L (fig. 544), on theaxis, it is found by the…
Physics
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