A) \[{{30}^{o}}\]
B) \[{{60}^{o}}\]
C) \[{{50}^{o}}\]
D) \[{{100}^{o}}\]
Correct Answer: C
Solution :
Angle of incidence \[i=\frac{A+{{\delta }_{m}}}{2}\] \[=\frac{{{40}^{o}}+{{60}^{o}}}{2}={{50}^{o}}\]You need to login to perform this action.
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