Two sheets of polarizing material are placed with their transmission axes at right angles to each other. A third polarizing sheet is placed between them with its transmission axis at 50° to the axis of the first one.
(a) If unpolarized light of intensity I0 is incident on the system, what is the intensity of the transmitted light?
____multiplied by I0
(b) What is the intensity of the transmitted light when the middle sheet is removed?
_____multiplied by I0