An object is placed in front of a converging lens with a focal length of 20.2 cm. For the object distance, find the image distance and the magnification.

Question

(a) 40.4 cm

location:

magnification:

Answer 1

1/20.2 = 1/40.4 + 1/f; f = 40.4/(2 - 1) = 40.4 cm

m = f/d = 40.4/20.2 = 2