A) \[{{30}^{o}}\]
B) \[{{45}^{o}}\]
C) \[{{60}^{o}}\]
D) \[{{90}^{o}}\]
Correct Answer: D
Solution :
\[\tan \theta =\frac{2\sqrt{{{\left[ \frac{{{(1-\lambda )}^{2}}}{2} \right]}^{2}}+{{\lambda }^{2}}}}{\lambda -\lambda }\Rightarrow \theta =90{}^\circ \].You need to login to perform this action.
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