A device used to measure the radius of curvature of the cornea of the eye is called a keratomeler. This is useful information when tit-ting contact lenses. In effect, an illuminated object is placed a known distance from the eye, and the image reflected off the cornea is observed. The instrument allows the operator to measure the size of that virtual image. If the magnification is found to be 0.037× when the object distance is set at 100 mm, what is the radius of curvature?
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