An object is to be seen through a simple microscope of focal length 12 cm. Where should the object the placed so as to produce maximum angular magnification? The least distance for clear vision is 25 cm.

Question

Philoid · Accepted Answer

Given data –

Focal length, f = 12 cm

Distance of clear vision, d = 25 cm

For maximum angular magnification,

Image distance = Least distance of clear vision

v = d = − 25 cm

Using len’s formula-

Substituting the values, we will get –

cms

Hence the object should be placed at a distance of 8.1 cm away from the lens for obtaining

maximum magnification.