A) \[\text{sin}\,\ge \frac{13}{11}\]
B) \[\text{sin}\,\ge \frac{11}{13}\]
C) \[\text{sin}\,\ge \frac{\sqrt{3}}{2}\]
D) \[\text{sin}\,\ge \frac{1}{\sqrt{2}}\]
Correct Answer: B
Solution :
Using the formula \[{{\mu }_{prism}}=\frac{{{\mu }_{liquid}}}{{{\mu }_{prism}}}=\frac{1.32}{1.56}=\frac{11}{13}\] ? (i) Now, the condition for the total internal reflection, occurs when \[\sin \theta \ge \mu \] So, \[\sin \theta \ge \frac{11}{13}\]
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