Two Mirrors Are at Right Angles to One Another

question 35

Multiple Choice

Two mirrors are at right angles to one another. A light ray is incident on the first at an angle of 30° with respect to the normal to the surface. What is the angle of reflection from the second surface?

• A) 30°
• B) 60°
• C) 45°
• D) 53°
• E) 75°

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Definitions:

Measurement

The process of obtaining a numerical value that represents the size, quantity, or degree of an attribute or phenomenon.

Description

The act of detailing or explaining the characteristics, features, or aspects of something.

Operational Definition

A clear, detailed description of how variables in a study are measured or categorized.

Independent Variable

The factor in a study that the investigator alters to examine its impact on the dependent variable.