Optics Question 514
Question: Two vertical plane mirrors are inclined at an angle of $ 60{}^\circ $ with each other. A ray of light travelling horizontally is reflected first from one mirror and then from the other. The resultant deviation is
Options:
A) $ 60{}^\circ $
B) $ 120{}^\circ $
C) $ 180{}^\circ $
D) $ 240{}^\circ $
Show Answer
Answer:
Correct Answer: D
Solution:
$ \delta =(360-2\theta )=(360-2\times 60)=240^{o} $
