A converging lens used as a simple magnifier has a focal length of

PHYSICS · Subjective · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments

Problem

5\,\text{cm}

. For a normal eye with least distance of distinct vision

D = 25\,\text{cm}

and the final image at infinity, calculate its magnifying power. Give your answer correct to one decimal place.