A) \[35{}^\circ \]
B) \[40{}^\circ \]
C) \[45{}^\circ \]
D) \[50{}^\circ \]
E) None of the above
Correct Answer: E
Solution :
From law of Malus \[I={{I}_{0}}{{\cos }^{2}}\theta \] Given, \[I=\frac{{{I}_{0}}}{4}\] \[\frac{1}{4}={{\cos }^{2}}\theta \] \[\Rightarrow \] \[\cos \theta =\frac{1}{2}\]\[\Rightarrow \]\[\theta =60{}^\circ \] Note None of the options are correct.You need to login to perform this action.
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