For a compound microscope with

PHYSICS · Multi-part · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments

Problem

For a compound microscope with fo=0.5 cmf_o = 0.5\,\text{cm}, fe=5 cmf_e = 5\,\text{cm} and tube length 16 cm16\,\text{cm}: (i) Find the magnifying power when the final image is at infinity. (ii) By what factor does the magnifying power increase if the final image is instead formed at the near point? Take D=25 cmD = 25\,\text{cm}.

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