A) \[{{30}^{o}}\]
B) \[{{45}^{o}}\]
C) \[{{60}^{o}}\]
D) \[{{90}^{o}}\]
Correct Answer: D
Solution :
Refractive index \[\mu =\frac{\sin i}{\sin r}\,=\frac{{{v}_{1}}}{{{v}_{2}}}\] \[\Rightarrow \,\sin \,r=\sin {{30}^{0}}\times \frac{2v}{v}\] \[\Rightarrow \,\sin r=\frac{1}{2}\times 2=1\Rightarrow \,r={{90}^{0}}\]You need to login to perform this action.
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