What Happens to the Color Produced by a Glowing Phosphor

question 76

Multiple Choice

What happens to the color produced by a glowing phosphor as the intensity of the electron stream increases in a CRT monitor?

• A) It gets brighter.
• B) It gets darker.
• C) It gets lighter.
• D) It gets thinner.

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Definitions:

Advanced Placement

A program in the United States and Canada that offers college-level curriculum and examinations to high school students.

Chi-square Test

A statistical approach intended to determine the existence of an important association between two variables that are categorical.

Null Hypothesis

A hypothesis used in statistics that suggests no significant difference or effect, serving as a default position before any evidence is considered.

Chi-square Test

A statistical test used to determine the association between categorical variables, assessing whether observed frequencies differ significantly from expected frequencies.