Optics Question 776
Question: The wavelength of light in air and some other medium are respectively $ {\lambda _{a}} $ and $ {\lambda _{m}}. $ The refractive index of medium is
[RPMT 2003]
Options:
A) $ {\lambda _{a}}/{\lambda _{m}} $
B) $ {\lambda _{m}}/{\lambda _{a}} $
C) $ {\lambda _{a}}\times {\lambda _{m}} $
D) None of these
Show Answer
Answer:
Correct Answer: A
Solution:
$ {\mu _{m}}=\frac{c}{v}=\frac{n{\lambda _{a}}}{n{\lambda _{m}}} $
$ =\frac{{\lambda _{a}}}{{\lambda _{m}}} $
