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

question 6

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 is zero at the observer.What are the two possible axis angle settings (less than 180°) of polarizer B?

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

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Definitions:

Quasidirectional

Pertains to a tendency or trend that is not strictly linear or unidirectional but suggests a general direction.

Test Statistic

A calculated value used in hypothesis testing that helps to determine whether to reject the null hypothesis.

Pooled Variance

Pooled variance is a method used to estimate the variance of two or more groups by combining their variances, assuming they have the same variance but not necessarily the same mean.

Degrees Of Freedom

The number of independent values or quantities which can vary in an analysis without breaking any constraints.