Three compound microscopes have the following pairs of focal lengths (objective

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

Problem

f_o

, eyepiece

f_e

): A:

5\,\text{mm},\;25\,\text{mm}

4\,\text{mm},\;20\,\text{mm}

5\,\text{mm},\;20\,\text{mm}

All three have the same tube length of

160\,\text{mm}

and are used in normal adjustment. Arrange the microscopes in decreasing order of magnifying power.