The Following Items Are Positioned in Sequence: a Source of a Beam

Question 55
Multiple Choice

The following items are positioned in sequence: A source of a beam of natural light of intensity I0,three ideal polarizers A,B,and C;and an observer.Polarizer axis angles are measured clockwise from the vertical,as viewed by the observer.The axis angle of polarizer A is set at 0° (vertical),and the axis angle of polarizer C is set at 50°.Polarizer B is set so that the beam intensity at the observer is a maximum.What is the axis angle settings of polarizer B? A)0° B)25° C)50° D)75° E)100°