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In Fig. 34-44, a real inverted image I of an object O isformed by a particular lens (not shown); the object imageseparation is d = 40.0cm, measured along the central

axisof the lens. The image is just half the size of the object. What kind of lens must be used to produce this im-age? ) How far from the object must the lens be placed? What is the focal length of the lens?

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