A) \[\sin \theta \ge \frac{13}{11}\]
B) \[\sin \theta \ge \frac{11}{13}\]
C) \[\sin \theta \ge \frac{\sqrt{3}}{2}\]
D) \[\sin \theta \ge \frac{1}{\sqrt{2}}\]
Correct Answer: B
Solution :
From relation, \[i{{\mu }_{p}}=\frac{{{\mu }_{i}}}{{{\mu }_{p}}}\] Here \[{{\mu }_{liquid}}=1.32,\,{{\mu }_{prism}}=1.56\] \[{{\mu }_{p}}=\frac{1.32}{1.56}=\frac{11}{13}\] ?.(i) Also, total internal reflection, occurs if \[\sin \theta \ge i{{\mu }_{p}}\] \[\sin \theta \ge \frac{11}{13}\]
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