Question

A man is looking at a small object placed at his near point. Without altering the position of his eye or the object, he puts a simple microscope of magnifying power 5 X before his eyes. The angular magnification achieved is

Options

• 5

•  2.5

•  1

• 0.2

Answer 1

1

We have :

h = Object height

u = object distance = 25 cm

D = Near point = 25 cm

Now,

m = `(h/u)/(h/D)`

⇒ m = `(h/u)/(h/25)`

⇒ m = 1