A) 2.45
B) 1.41
C) 2.59
D) 1.59
Correct Answer: A
Solution :
Given, critical angle \[C={{24.5}^{o}}\] For total internal reflection \[\mu =\frac{1}{\sin \,C}=\frac{1}{\sin \,{{24.5}^{o}}}\] \[\mu =2.45\] \[[\sin \,{{24.5}^{o}}=0.414]\]
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