question_answer

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                [JEE Online 15-04-2018 (II)]

A)         \[203{}^\circ \]                 

B) \[45{}^\circ \]   

C) \[98{}^\circ \]                   

D)          \[128{}^\circ \]