Solved: A lens has a focal length of 25 cm. What is the
Chapter , Problem 2(choose chapter or problem)
A lens has a focal length of 25 cm. What is the power of the lens? (a) 2.0 diopters (b) 4.0 diopters (c) 6.0 diopters (d) 8.0 diopters (e) none of these
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