Explain qualitatively how each of the following changes affects the magnifying power…
PHYSICS · Subjective · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments
Problem
Explain qualitatively how each of the following changes affects the magnifying power of a compound microscope when the final image is formed at the least distance of distinct vision:
(i) Decreasing the focal length of the objective while keeping the tube length constant.
(ii) Increasing the separation between the objective and the eyepiece without changing their focal lengths.
(iii) Replacing the eyepiece with another of larger focal length.
Support your answers with appropriate reasoning based on the behaviour of the intermediate image and the angular magnification produced by the eyepiece.