Q10.1Multiple choice
Consider a light beam incident from air to a glass slab at Brewster’s angle as shown in Fig. 10.1. A polaroid is placed in the path of the emergent ray at point P and rotated about an axis passing through the centre and perpendicular to the plane of the polaroid.
This question refers to a figure in the original PDF.
- (a)For a particular orientation there shall be darkness as observed through the polaoid.
- (b)The intensity of light as seen through the polaroid shall be independent of the rotation.
- (c)The intensity of light as seen through the Polaroid shall go through a minimum but not zero for two orientations of the polaroid.
- (d)The intensity of light as seen through the polaroid shall go through a minimum for four orientations of the Fig. 10.1 P polaroid.