Optics Question 952
Question: The critical angle of light going from medium A to medium B is $ \theta $ . The speed of light in medium A is v. The speed of light in medium B is:
Options:
A) $ \frac{v}{\sin \theta } $
B) $ v\sin \theta $
C) $ v\cot \theta $
D) $ v\tan \theta $
Show Answer
Answer:
Correct Answer: A
Solution:
[a] $ \sin \theta =\frac{1}{\mu }=\frac{C _{A}}{C _{B}} $
$ \Rightarrow C _{B}=\frac{V}{\sin \theta } $
