A simple magnifier gives a magnification of 8 times when it is used by a person with a normal near point (25 cm).What is the magnifying power when it is used by a person whose near point is 15 cm?
A)4.8
B)13
C)8.0
D)15
E)9.6

Question

Quizplus · Accepted Answer

Magnifying power = (25/near point)= 25/15 = 5/3 = 1.67Magnification = 8 * 1.67 = 13.36Therefore, the magnifying power is 13.36, which is closest to option A) 4.8.

A Simple Magnifier Gives a Magnification of 8 Times When