[Expert Solution]: Callum is examining a square stamp of side 2

Callum is examining a square stamp of side 2.50 cm with a magnifying glass of refractive power +83.1 D. The magnifier forms an image of the stamp at a distance of 1.56 m from his eye (instead of at infinity). Assume that Callum’s eye is close to the magnifying glass. how large is the image formed by the magnifier