A) \[\mu =\sqrt{2}\,,\,\delta ={{30}^{o}}\]
B) \[\mu =1.5\,,\,\delta ={{15}^{o}}\]
C) \[\mu =\frac{\sqrt{3}}{2},\delta ={{30}^{o}}\]
D) \[\mu =\sqrt{\frac{3}{2}},\delta ={{15}^{o}}\]
Correct Answer: D
Solution :
From figure it is clear that \[\angle \,e=\angle \,{{r}_{2}}=0\] From \[A={{r}_{1}}+{{r}_{2}}\] \[\Rightarrow {{r}_{1}}=A={{45}^{o}}\] \[\therefore \mu =\frac{\sin i}{\sin {{r}_{1}}}=\frac{\sin 60}{\sin 45}=\sqrt{\frac{3}{2}}\] Also from\[i+e=A+\delta \]\[\Rightarrow 60+0=45+\delta \]\[\Rightarrow \delta ={{15}^{o}}\]You need to login to perform this action.
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