### Use ray tracing to determine the location of the image

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A near-sighted person might correct his vision by wearing diverging lenses with focal length f = -45cm. When wearing his glasses, he looks not at actual objects but at the virtual images of those objects formed by his glasses. Suppose he looks at a 10cm -long pencil held vertically 1.8m from his glasses.

Use ray tracing to determine the location of the image.

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