If the lineally-polarized (plane-polarized) light is incident onto the polarizer, then the intensity of the transmitted light will depend upon the angle a between the direction of the light polarization and the orientation of the polarizer. Animation shows the experiment when the Gaussian beam with linear polarization is incident onto the rotating polarizer. As a result the intensity of light spot on the screen behind the polarizer is varied harmonically depending on the angle between the polarization direction and polarizer angle.
http://physics-animations.com/
Light polarization is a little more complicated then that.
Zenodilodon 2 years ago