# Question

A detective wants to achieve maximum magnification when looking at a fingerprint with a magnifying glass.

(a) He should use a lens with (1) a long focal length, (2) a short focal length, (3) a larger size. Explain.

(b) If he uses lenses of focal length + 28 cm and + 40 cm, what are the maximum magnifications of the print?

(a) He should use a lens with (1) a long focal length, (2) a short focal length, (3) a larger size. Explain.

(b) If he uses lenses of focal length + 28 cm and + 40 cm, what are the maximum magnifications of the print?

## Answer to relevant Questions

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