Question
(a) What is the focal length of a magnifying glass that produces a magnification of 3.00 when held 5.00 cm from an object, such as a rare coin? (b) Calculate the power of the magnifier in diopters. (c) Discuss how this power compares to those for store-bought reading glasses (typically 1.0 to 4.0 D). Is the magnifier’s power greater, and should it be?
1. $7.50 \textrm{ cm}$
2. $13.3 \textrm{ D}$
3. The magnifier's power is much greater than the power of store bought glasses.
Solution Video