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A) How far behind a 15.4 cm magnifying glass would you put a fingerprint to get...

A) How far behind a 15.4 cm magnifying glass would you put a fingerprint to get an upright image 2.029 times as large? Answer in cm. Would this be a real or virtual image.

B) Lenses of focal lengths +58.1 mm & +21 mm are held 92.5 mm apart to make a makeshift microscope. A leaf of length 6.77 cm is placed 208 mm from the larger focal length lens. How large will the virtual image appear when viewed through the other lens? Answer in cm, and use + for upright and - for inverted.

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