A) \[{{30}^{o}}\]
B) \[{{45}^{o}}\]
C) \[{{60}^{o}}\]
D) \[{{90}^{o}}\]
Correct Answer: D
Solution :
From Snell?s law, refractive index \[(\mu )\] is given by \[\mu =\frac{\sin \,i}{\sin \,r}\] ??(i)You need to login to perform this action.
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