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A contact lens prescription calls for +2.25-diopter lenses with inner curvature radius 8.6 mm to fit the patient’s cornea, (a) If the lenses are plastic with n = 1.56, what should be the outer curvature radius? (b) With these lenses, the patient comfortably reads a newspaper 30 cm from her eyes. Where’s the image as viewed through the lenses?
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