If a polarizing filter reduces the intensity of polarized light to of its original value, what is the ratio of the amplitude of the electric and magnetic fields in the light incident from and emergent from the filter?
A student places sheets and so that their transmission axes are at and , respectively. These angles are relative to the axis of polarization of a beam of linearly polarized light. This rotates the beam’s polarization by .
What fraction of light passes through ?
What fraction of light passes through both sheets?
The transmission angle for is changed to relative to the beam’s polarization axis. After the angle change, what fraction of light passes through both sheets?
Three polarizing sheets are placed parallel to each other. The transmission axis of the second sheet is oriented at relative to the transmission axis of the first sheet, and the transmission axis of the third sheet is oriented at relative to the transmission axis of the first sheet. What fraction of the intensity of an unpolarized light beam incident on the first sheet is transmitted by the third sheet?