A laboratory course in experimental physics (1896)
Loudon, W. J. (William James), McLennan, John Cunningham, joint author · New York and London, Macmillan and Co. · leaf 58
l give a pair of images. By noting that the images producedby a convex reflecting surface are always erect, the student willfind no difficulty in distinguishing the two sets. FOCAL LENGTH OF A BICONVEX LENS. 47 XX. FOCAL LENGTH OF A BICONVEX LENS. Method I. Theory. — In Fig. 36, AC is a biconvex… … Fig. 36. a ray parallel to the principal axis on striking it ultimatelypasses through the focus, we are able to obtain a relationconnecting the distance of the object, and of its image fromthe center of the lens C, with the focal length. If QC and QA are these two rays, the point Q where…
Physics
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