A) Total internal reflection can take place
B) Total internal reflection cannot take place
C) Any of (a) and (b)
D) Data is incomplete
Correct Answer: B
Solution :
From graph, slope \[=\tan \,\left( \frac{2\pi }{10} \right)=\frac{\sin r}{\sin i}\] Also \[_{1}{{\mu }_{2}}=\frac{{{\mu }_{2}}}{{{\mu }_{1}}}=\frac{\sin i}{\sin r}=\frac{1}{\tan \,\left( \frac{2\pi }{10} \right)}=\frac{4}{3}\]Þ \[{{\mu }_{2}}>{{\mu }_{1}}\] It means that medium 2 is denser medium. So total internal reflection cannot occur.
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