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Question 25

A plane polarized light is incident on a polariser with its pass axis making angle $$\theta$$ with x-axis, as shown in the figure. At four different values of $$\theta$$, $$\theta$$ = 8$$^\circ$$, 38$$^\circ$$, 188$$^\circ$$ and 218$$^\circ$$, the observed intensities are same. What is the angle between the direction of polarization and x-axis?

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