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 }. $