A) \[15{}^\circ \]
B) \[35{}^\circ \]
C) \[55{}^\circ \]
D) \[75{}^\circ \]
Correct Answer: C
Solution :
Intensity of un polarized light,\[I'=\frac{I}{2}{{\cos }^{2}}\theta \] \[\therefore \] \[\frac{I}{2}{{\cos }^{2}}\theta =\frac{I}{6}\] \[\Rightarrow \] \[{{\cos }^{2}}\theta =\frac{1}{3}\] \[\Rightarrow \] \[\cos \theta =\frac{1}{\sqrt{3}}\] \[\therefore \] \[\theta ={{55}^{o}}\]You need to login to perform this action.
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