A person whose least distance of distinct vision is wishes to read fine print using a…
PHYSICS · Multi-part · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments
Problem
A person whose least distance of distinct vision is 30cm wishes to read fine print using a simple magnifier under normal adjustment (final image at infinity).
(i) What focal length of lens is required to obtain a magnifying power of 10 for this person?
(ii) If the same lens is used by a person with normal vision (D=25cm) under the same viewing condition, what magnifying power will that person experience?