A) \[{{30}^{o}}\]
B) \[{{90}^{o}}\]
C) \[{{0}^{o}}\]
D) \[{{45}^{o}}\]
Correct Answer: B
Solution :
Here \[{{i}_{1}}=60\] \[A=30\] \[\delta =30\] Since, \[\delta ={{i}_{1}}+{{i}_{2}}-A\] \[{{i}_{2}}=0\] So from the surface, it will make.You need to login to perform this action.
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