A) \[{{0}^{o}}\]
B) \[{{90}^{o}}\]
C) \[{{180}^{o}}\]
D) none of these
Correct Answer: C
Solution :
Key Idea: Phenomenon of reflection is independent of medium. The deviation produced by combination of two plane mirrors is \[\delta =2\pi -2\theta \] \[=2\pi -2\times \frac{\pi }{2}\] \[(\theta ={{90}^{o}})\] \[\Rightarrow \] \[\delta =\pi ={{180}^{o}}\]. Hence, total deviation in incident ray is\[{{180}^{o}}\].You need to login to perform this action.
You will be redirected in
3 sec