The figure shows a glass plate placed vertically on a horizontal table. $A$ beam of unpolarised light falls on its surface at the polarising angle of $57^\circ$ with the normal. The electric vector in the reflected light on screen $S$ will vibrate with respect to the plane of incidence in a:
- AVertical plane
- BHorizontal plane
- CPlane making an angle of $45^\circ$ with the vertical
- DPlane making an angle of $57^\circ$ with the horizontal
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