A) Normal to the face through which it emerges
B) Inclined at 30° to the face through which it emerges
C) Inclined at 60° to the face through which it emerges
D) None of these
Correct Answer: A
Solution :
We know that \[\delta =i+e-A\Rightarrow e=\delta +A-i\] = \[{{30}^{o}}+{{30}^{o}}-{{60}^{o}}={{0}^{o}}\] \[\therefore \] Emergent ray will be perpendicular to the face. Therefore it will make an angle of 90° with the face through which it emerges.You need to login to perform this action.
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