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1) A converging lens (f1 = 10.9 cm) is located 31.2 cm to the left of...

1) A converging lens (f1 = 10.9 cm) is located 31.2 cm to the left of a diverging lens (f2 = -6.18 cm). A postage stamp is placed 32.4 cm to the left of the converging lens. Find the overall magnification.

2) An object is placed in front of a convex mirror, and the size of the image is one-fourth that of the object. What is the ratio (do/f) of the object distance to the focal length of the mirror?

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