(a) What is the maximum angular magnification of an eyeglass lens having a focal length of...
(a) What is the maximum angular magnification of an eyeglass
lens having a focal length of 19.6 cm when used as a simple
magnifier?
(b) What is the magnification of this lens when the eye is
relaxed?
Homework Answers
Part 1)
The maximum angular magni?cation of a lens having a focal length of
19.6 cm is
(25cm/ f) + 1= 25 cm/19.6cm +1 = 1.27+ 1 =2.27
f = 11.01 cm
Part 2)
The angular magni?cation of this lens when the eye is relaxed
is
(25cm/ f) = 1.27
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