A) Normal to the face through which it emerges
B) Inclined at \[{{30}^{o}}\] to the face through which it emerges
C) Inclined at \[{{60}^{o}}\] to the face through which it emerges
D) Inclined at \[{{90}^{o}}\] to the normal at face through which it emerges
Correct Answer: A
Solution :
\[A+\delta =i+i'\Rightarrow i'=A+\gamma d-i=30+30-60={{0}^{o}}\]You need to login to perform this action.
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