A) 30°
B) 60°
C) 45°
D) \[{{\sin }^{-1}}\sqrt{1.5}\]
Correct Answer: C
Solution :
\[A=r+0\]\[\Rightarrow r={{30}^{o}}\] From Snell?s law at surface AB \[\mu =\frac{\sin i}{\sin r}\] \[\Rightarrow \sqrt{2}=\frac{\sin i}{\sin {{30}^{o}}}\Rightarrow i={{45}^{o}}\]You need to login to perform this action.
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