7.7 A thin lens with an aperture of 6.0 cm and focal length of 10.0 cm is located 4.0 cm behind another thin lens with a

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7 7 A Thin Lens With An Aperture Of 6 0 Cm And Focal Length Of 10 0 Cm Is Located 4 0 Cm Behind Another Thin Lens With A 1 (50.19 KiB) Viewed 6 times

7.7 A thin lens with an aperture of 6.0 cm and focal length of 10.0 cm is located 4.0 cm behind another thin lens with an aperture of 8.0 cm and a focal length of +5.0 cm. An object 4.0 cm high is located with its center on the axis +12.0 cm in front of the first lens, and a stop 5.0 cm in diameter is located midway between the lenses. Calcu- late and graphically find (a) the size and position of the entrance pupil, (b) the size and position of the exit pupil, and (c) the size and position of the final image. See Fig. P7.7 below. Ans. (a) +8.33 and 3.333 cm, (b) +4.17 and -1.667 cm, (c) +5.26 and +8.42 cm Entrance pupil 1 Exit pupil 1 M' Q 12 M F2 F1 -10-5 Po E' E Eo Lo L' T F2