A) Zero
B) \[\frac{{{I}_{0}}}{8}\]
C) \[\frac{{{I}_{0}}}{4}\]
D) \[\frac{{{I}_{0}}}{16}\]
Correct Answer: B
Solution :
Intensity of light emerging out from the first polarizer \[{{I}_{1}}=\frac{1}{2}{{I}_{0}}\] The intensity of light emerging out from the second polarizer \[{{I}_{2}}={{I}_{1}}\,\,{{\cos }^{2}}\,\,{{60}^{o}}\] \[=\left( \frac{1}{2}{{I}_{0}} \right){{\left( \frac{1}{2} \right)}^{2}}\] \[{{I}_{2}}=\frac{1}{8}{{I}_{0}}\]
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