A) \[{{\sin }^{-1}}\left( \tan \,i \right)\]
B) \[ta{{n}^{-1}}\left( sin\,i \right)\]
C) \[si{{n}^{-1}}\left( \cot \,i \right)\]
D) \[{{\cos }^{-1}}\left( \tan \,i \right)\]
Correct Answer: C
Solution :
From law of reflection, \[\angle i=\angle r\] ...(i) and \[\frac{\sin r}{\sin i}=\frac{{{\mu }_{d}}}{{{\mu }_{r}}}\] ...(ii) From the figureYou need to login to perform this action.
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