Optics Question 712
Question: The index of refraction of diamond is 2.0, velocity of light in diamond in cm/second is approximately
[CPMT 1975; MNR 1987; UPSEAT 2000]
Options:
A) $ 6\times 10^{10} $
B) $ 3.0\times 10^{10} $
C) $ 2\times 10^{10} $
D) $ 1.5\times 10^{10} $
Show Answer
Answer:
Correct Answer: D
Solution:
$ v=\frac{c}{\mu }=\frac{3\times 10^{8}}{2}=1.5\times 10^{8}m/s=1.5\times 10^{10}cm/s $
