How polarization of light can be demonstrated on a parallel arrangements of crystalsexplain?

The polarization of light can be demonstrated using two polarizing crystals arranged in parallel. When unpolarized light passes through the first polarizer, it becomes polarized in the direction of the polarizer's axis. If a second polarizing crystal is placed parallel to the first, the polarized light can pass through, maintaining its intensity. However, if the second crystal is rotated to a different angle, the intensity of the transmitted light decreases, illustrating how the alignment of polarizing crystals affects the polarization of light.