The least distance of distinct vision for a normal eye is

PHYSICS · Single correct · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments

Problem

25\,\text{cm}

. A magnifying glass has focal length

f = 10\,\text{cm}

. What is its magnifying power when adjusted to form the final image at infinity? (a)

3.5

(b)

2.0

(c)

2.5

(d)

1.5