Question

Although sunlight is unpolarized, the light that reflects from smooth surfaces may be partially polarized in the direction parallel to the plane of the reflecting surface. part a how should the axis of the polarizers in sunglasses be oriented—vertically or horizontally—to reduce the glare from a horizontal surface such as a road or a lake? select the correct answer and explanation.

Answer 1

The answer would be vertically. This is from the time when there is already an incomplete polarization in the direction of the analogous to the horizontal surface, we only need to relate some vertical polarization (through sunglasses) to stabilize things off.