A Beam of Polarized Light of Intensity I₀ Passes Through

question 8

Multiple Choice

A beam of polarized light of intensity I₀ passes through a sheet of ideal polarizing material.The polarization axis of the beam and the transmission axis of the sheet differ by 38°.What is the intensity of the emerging light?

• A)0.79I₀
• B)0.62I₀
• C)0.91I₀
• D)0.90I₀
• E)0.96I₀

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Definitions:

Random Assignment

Use of a random "chance" procedure (such as a random number generator or coin toss) to determine the condition in which an individual will participate.

Confounding Variable

A factor other than the independent variable that might produce an effect in an experiment, leading to inaccurate results if not controlled.

Independent Variable

The variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable.

Confounding Variable

An external variable that affects both the variables being studied, potentially misleading the results of an experiment.