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When a converging lens is used in a camera (as in Figure 26.26b), the film must be at a distance of 0.210 m from the lens to record an image of an object that is 4.00 m from the lens. The same lens and film are used in a projector (see Figure 26.27b), with the screen 0.500 m from the lens. How far from the projector lens should the film be placed?
Figure 26.26b
Figure 26.27b |
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