Answer: A lens is made of glass having an index of
Chapter , Problem 41(choose chapter or problem)
A lens is made of glass having an index of refraction of 1.5. One side of the lens is fiat, and the other is convex with a radius of curvature of 20 cm. (a) Find the focal length of the lens. (b) If an object is placed 40 cm in front of the lens, where is the image?
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