83. In a slide or movie projector, the film acts as the
Chapter 23, Problem 83(choose chapter or problem)
83. In a slide or movie projector, the film acts as the object whose image is projected on a screen (Fig. 23-58). If a 105-mm-focal-length lens is to project an image on a screen 8.00 m away, how far from the lens should the slide be? If the slide is 36 mm wide, how wide will the picture be on the screen?
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