A slide projector is designed with its lens 6.0 m from the screen. The projected image is 1.5 m square of a slide object 2.5 cm square
(a) What is the object distance from the lens?
(b) What should be the lens focal length?
(c) What is the lens POWER?
(a) 10. cm
(b) f = 9.8 cm
(c) 10.2 Diopters
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