A) The spectrum of visible light whose frequency is more than that of green light will come out to the air medium.
B) The entire spectrum of visible light will come out of the water at various angles to the normal.
C) The entire spectrum of visible light will come out of the water at an angle of \[90{}^\circ\] to the normal.
D) The spectrum of visible light whose frequency is less than that of green light will come out to the air medium.
Correct Answer: D
Solution :
\[{{\mu }_{r}}<{{\mu }_{g}}<{{\mu }_{v}}\Rightarrow \sin ({{\theta }_{r}})>sin({{\theta }_{g}})>sin({{\theta }_{v}})\] \[\Rightarrow \]\[{{\theta }_{r}}>{{\theta }_{g}}>{{\theta }_{v}}\][\[{{\theta }_{r}},{{\theta }_{g}},{{\theta }_{v}}\]are critical angles of corresponding colors] Thus all colors from red to green will emerge out of water
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