Question

A wire mesh consisting of very small squares is viewed at a distance of 8 cm through a magnifying converging lens of focal length 10 cm, kept close to the eye. The magnification produced by the lens is

(a) 5

(b) 8

(c) 10

(d) 20

Answer 1

Correct option (a) 5

Explanation:

u = -8 cm, f = +10 cm

As, 1/v - 1/u = 1/f,

This is a virtual image, erect and on the same side as the object.