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Physics Optics Problem

An object 8 cm high is placed 20 cm in front of a converging lens of 10 cm focal length. A second converging lens of 20 cm focal length is plaed 30 cm behind the first lens. Find (a) the image distance for the first lens, (b) the object distance for the second lens, (c) the image distance for the second lens, and (d) the total magnification of the combination.

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