A converging lens with focal length 10 cm is to be used as a magnifying glass.
PHYSICS · Multi-part · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments
Problem
A converging lens with focal length 10 cm is to be used as a magnifying glass.
(1) Determine the minimum object distance for which an observer with a near-point distance of 25 cm can view a clear, upright virtual image through the lens when the image is formed at the near point.
(2) For this situation, calculate the magnification (ratio of apparent image height to object height).