The projection lens in a certain slide projector is a single thin lens. A slide 23.9 mm high is to be projected so that its image fills a screen 1.84 m high. The slide-to-screen distance is 2.96 m.
(a) Determine the focal length of the projection lens.
? mm
(b) How far from the slide should the lens of the projector be placed to form the image on the screen?
? mm