Answer:
Reflected light is partially polarized in a direction perpendicular to the surface of the glass.
Step-by-step explanation:
Note that:
Polarization is when an unpolarized light is made to be polarized. That is, light is made to travel only in one plane.
Sunlight does not undergo polarization because it is too large for its rays to have a real amplitude
The amplitude of a wave is responsible for its ability to be polarized
After the sunlight hits the glass window, it bounces back and falls into the eye. In this process, it becomes partially polarized (that is, it is made to propagate only in one plane) and is made to travel in a direction parallel to the glass surface.