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Photometry and Geometrical Optics

Problem 5.42

Figure 5.9 illustrates an aligned system consisting of three thin lenses. The system is located in air. Determine: (a) the position of the point of convergence of a parallel ray incoming from the left after passing through the system; (b). the distance between the first lens and a point lying on the axis to the left of the system, at which that point and its image are located symmetrically with respect to the lens system.

Reveal Answer
 5.42. (a) To the right of the last lens at the distance 3.3 cm from  it: (b) l=17 cm\begin{aligned} &\text { 5.42. (a) To the right of the last lens at the distance } 3.3 \mathrm{~cm} \text { from }\\ &\text { it: (b) } l=17 \mathrm{~cm} \end{aligned}
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