Two compound microscopes, A and B

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

Problem

Two compound microscopes, A and B, have identical eyepieces of focal length

2.5\,\text{cm}

and the same tube length of

18\,\text{cm}

. The objective focal length is

0.4\,\text{cm}

for microscope A and

0.6\,\text{cm}

for microscope B. Assume the least distance of distinct vision to be

25\,\text{cm}

and that both microscopes are used in normal adjustment. (i) Find the approximate magnification produced by each microscope. (ii) Determine the ratio of the magnifications

M_A / M_B

Related theory

Optical Instruments
Microscopes
Optics
The microscope
Ray Optics and Optical Instruments

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