College Physics 10th Edition by Raymond Serway,Chris Vuille

Exercise 32

A diverging lens ( n = 1.50) is shaped like that in Figure 23.25c. The radius of the first surface is 15.0 cm, and that of the second surface is 10.0 cm. (a) Find the focal length of the lens. Determine the positions of the images for object distances of (b) infinity, (c) 3 f , (d) f , and (e) f /2.