PRparallel to the axis. Join FR and produce it to S, thenRS is the reflected ray. Join OP meeting the mirror in Tand FR in p. An incident ray PT is reflected along TP;the two reflected rays produced backwards meet at p and pqis the image of PQ. It is virtual, erect, and smaller than theobject. 0… … Fig. 70. Section 53. Draw RN, fig. 70, perpendicular to the axis.Then since we are dealing only with rays which are incidentvery close to A, the point R is near to A and N is very closeindeed to A. We may without sensible error measure thedistances of Q and q either from A or from N.Let us put AQ =…
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