Optics Question 670

Question: The chromatic Aberration in lenses becomes due to

[CPMT 2003]

Options:

A) Disimilarity of main axis of rays

B) Disimilarity of radii of curvature

C) Variation of focal length of lenses with wavelength

D) None of these

Show Answer

Answer:

Correct Answer: C

Solution:

$ f\propto \frac{1}{\mu -1} $ and $ \mu \propto \frac{1}{\lambda }. $



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