Q. 25.0( 1 Vote )

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.

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 –


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

maximum magnification.

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