A) 1.4
B) 1.3
C) 1.2
D) 1.6
Correct Answer: B
Solution :
For TIR at PQ; \[\theta <C\] From geometry of figure\[\theta =60\], i.e., \[60>C\] \[\Rightarrow \,\,\,\,sin\,60\,\,>\,\,sin\,C\] \[\Rightarrow \,\,\,\,\frac{\sqrt{3}}{2}>\frac{{{\mu }_{Liquid}}}{{{\mu }_{\Pr ism}}}\,\,\,\Rightarrow \,\,{{\mu }_{Liquid}}\,<\,\,\frac{\sqrt{3}}{2}\times {{\mu }_{\Pr ism}}\] \[\Rightarrow \,\,\,\,{{\mu }_{Liquid}}<\,\,\frac{\sqrt{3}}{2}\times 1.5\,\,\,\Rightarrow \,\,\,{{\mu }_{Liquid}}\,<\,\,1.3\]
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