A) \[{{\tan }^{-1}}(5)\]
B) \[{{\tan }^{-1}}\left( \frac{1}{5} \right)\]
C) \[{{\sin }^{-1}}\left( \frac{1}{5} \right)\]
D) \[2.2\times {{10}^{3}}N\]
Correct Answer: C
Solution :
The value of speed in vacuum and medium are \[2\sqrt{2}:1\] and \[m/{{s}^{2}}\] we know that the refractive index \[{{\tan }^{-1}}(1)\] \[=\frac{\sqrt{1}}{{{\mu }_{0}}{{\varepsilon }_{0}}}\times \frac{\sqrt{\mu \varepsilon }}{1}=\frac{\sqrt{\mu \varepsilon }}{{{\mu }_{0}}{{\varepsilon }_{0}}}\]
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