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

question 13

Multiple Choice

The following 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,from the perspective of 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 is zero at the observer.Which of the following pairs of angles are possible axis angle settings of polarizer B?

• A) 40° and 90°
• B) 40° and 130°
• C) 40° and 140°
• D) 90° and 130°
• E) 90° and 140°

---

Definitions:

Scarcity

is the fundamental economic problem of having seemingly unlimited human wants in a world with limited resources.

Rationed

The controlled distribution of scarce resources, goods, or services.

Market Setting

Refers to the competitive environment in which businesses operate, influenced by supply and demand dynamics.