Question

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

Answer 1

Here, `d = 25 cm, m = 10, P = ?`
Angular magnification, `m = (d)/(f) :. f = (d)/(m) = (25)/(10) = 2.5 cm P = (100)/(f) = (100)/(2.5) = 40 D`