Optics Question 732
Question: If the speed of light in vacuum is $ C $ $ m/\sec , $ then the velocity of light in a medium of refractive index 1.5
[NCERT 1977; MP PMT 1984; CPMT 2002]
Options:
A) Is 1.5 $ \times $ C
B) Is C
C) Is $ \frac{C}{1.5} $
D) Can have any velocity
Show Answer
Answer:
Correct Answer: C
Solution:
$ \mu =\frac{C}{C _{m}}\Rightarrow C _{m}=\frac{C}{1.5} $
