A cell phone 7.0 cm tall is 40 cm in front of your eye (diameter 2.5 cm).

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A cell phone 7.0 cm tall is 40 cm in front of your eye (diameter 2.5 cm).
(a) Find the size of the image of the cell phone on your retina.
(b) The cell phone is now moved to a spot 60 cm from your eye. Is the image on the retina larger or smaller than the image in part (a)? By what factor?

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