A Beam of Light Is Polarized in a Vertical Plane

Multiple Choice

A beam of light is polarized in a vertical plane and has an intensity I0. The beam passes through an ideal polarizer and then through an ideal analyzer whose axis is set horizontally. If the axis of
The polarizer is set at 60° with the vertical, what is the ratio of the intensity of the final beam to I0?

A) 0.19
B) 0.43
C) 0.37
D) 0.25
E) 0.31