The near vision of an average person is 25cm.

Question:

The near vision of an average person is 25cm. To view an object with an angular magnification of 10, what should be the power of the microscope?

Solution:

D = 25 cm

u = -f

v = -25

m = v/u

f = 0.025 m

p = 1/f = 40 D

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