College Physics 10th Edition by Raymond Serway,Chris Vuille

Exercise 82

Two converging lenses having focal lengths of f 1 = 10.0 cm and f 2 = 20.0 cm are placed d = 50.0 cm apart, as shown in Figure P23.44. The final image is to be located between the lenses, at the position x = 31.0 cm indicated. (a) How far to the left of the first lens should the object be positioned (b) What is the overall magnification of the system (c) Is the final image upright or inverted