A) the speed of light in the medium [b] is \[\sqrt{3}\] times than in medium [a]
B) the speed of light in the medium [b] is \[\frac{1}{\sqrt{3}}\] times than in medium [a]
C) the total internal reflection can take place when the incidence is in medium [a]
D) the total internal can take place when the incidence is medium [b]
Correct Answer: B
Solution :
\[\frac{\sin \,r}{\sin \,i}\,=\,\,\tan \,30\,\,=\,\,\frac{1}{\sqrt{3}}\,\,=\,\,\frac{{{\mu }_{1}}}{{{\mu }_{2}}}\,\,=\,\,\frac{{{v}_{2}}}{{{v}_{1}}}\] \[so\,\,\Rightarrow \,\,\,{{v}_{2}}\,\,=\,\,\frac{{{v}_{1}}}{\sqrt{3}}\]You need to login to perform this action.
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