A) \[\cos -\frac{4}{3}\]
B) \[{{\sin }^{-1}}\frac{4}{3}\]
C) \[{{90}^{0}}\]
D) \[{{\sin }^{-1}}\frac{3}{4}\]
Correct Answer: D
Solution :
Let diver is placed at S. He will see a cone of maximum radius r. In this condition \[\sin {{i}_{C}}=\frac{1}{_{a}{{\mu }_{\omega }}}\] \[\Rightarrow \] \[\sin {{i}_{c}}=\frac{1}{4/3}\] \[\Rightarrow \] \[\sin {{i}_{c}}=\frac{3}{4}\] Therefore, \[{{i}_{c}}={{\sin }^{-1}}\left( \frac{3}{4} \right)\]You need to login to perform this action.
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