Optics Question 339

Question: If in compound microscope m1 and m2 be the linear magnification of the objective lens and eye lens respectively, then magnifying power of the compound microscope will be

[CPMT 1985; KCET 1994]

Options:

A) $ m _{1}-m _{2} $

B) $ \sqrt{m _{1}+m _{2}} $

C) $ (m _{1}+m _{2})/2 $

D) $ m _{1}\times m _{2} $

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Answer:

Correct Answer: D

Solution:

Magnification of a compound microscope is given by $ m=-\frac{v _{o}}{u _{o}}\times \frac{D}{u _{e}} $

Therefore $ |m|=m _{o}\times m _{e} $ .



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