Completely polarized light is passed through a polarizing sheet.
The light that passes though has an intensity of 50% of the incident beam. The angle between the direction of the polarization of the incident beam and the direction of the polarization of the sheet must be what?
Let us denote this angle B.
Then, if we take the X-axis along the polarization axis of the polarizing sheet and Y-axis in the plane of the polarizing sheet and perpendicular to the X-axis, the electric ...