A) \[{{\sin }^{-\,1}}\,\left( \frac{3}{4} \right)\]
B) \[{{\sin }^{-\,1}}\,\left( \frac{3}{5} \right)\]
C) \[{{\sin }^{-\,1}}\,\left( \frac{4}{5} \right)\]
D) Data given are insufficient to make any calculation
Correct Answer: C
Solution :
Critical angle \[C={{\sin }^{-\,1}}\left( \frac{{{\mu }_{w}}}{{{\mu }_{g}}} \right)\,\,=\,\,{{\sin }^{-1}}\left( \frac{4/3}{5/3} \right)\] \[=\,\,\,{{\sin }^{-\,1}}\,\left( \frac{4}{5} \right)\]You need to login to perform this action.
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