A converging lens of focal length 20.0 cm is separated by 50.0 cm from a converging lens of focal length 5.00 cm.
(a) Find the position of the final image of an object placed 40.0 cm in front of the first lens.
(b) If the height of the object is 2.00 cm, what is the height of the final image? Is the image real or virtual?
(c) If the two lenses are now placed in contact with each other and the object is 5.00 cm in front of this combination, where will the image be located? (See Problem 46.)