muskan Posted December 8, 2017 Posted December 8, 2017 A person with a concave lens of power -5D has his far point at 20 cm and his near point at 25 cm. How is it possible?
Endy0816 Posted December 8, 2017 Posted December 8, 2017 This help any? http://www.math.ubc.ca/~cass/courses/m309-03a/m309-projects/lo/Corrections.html
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