(a) How far from a 50.0-mm-focal-length lens must an object be placed if its image is to...
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(a) How far from a 50.0-mm-focal-length lens must an object be placed if its image is to be magnified 2.50 x and be real?
(b) What if the image is to be virtual and magnified 2.50 x?
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a If the image is real then the focal length must be positive the image distance must be ...View the full answer
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