The Stefan-Boltzmann Law, Which Relates the Energy Per Unit Area $\sigma$

question 162

Multiple Choice

The Stefan-Boltzmann law, which relates the energy per unit area F emitted by an object to its temperature T, F = $\sigma$ T⁴, is obeyed by what kind of object?

• A) red-colored object, which absorbs blue light but reflects red light
• B) only hot gases, whose atoms emit and absorb only specific colors (e.g., neon tubes)
• C) blackbody, a perfect absorber and emitter of energy at all wavelengths
• D) all objects, whatever their color or reflective properties

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Definitions:

Good Taste

The ability to make discerning judgments about aesthetic, stylistic, or cultural matters, often associated with politeness, sophistication, or a sense of propriety.

Objectivism

A philosophical system developed by Ayn Rand centered around the advocacy of rational self-interest and individual rights.

Suppressed Thoughts

Ideas or memories that are intentionally or unintentionally kept out of conscious awareness.

Laughter

A physical manifestation of joy or amusement, often considered as a universal language across cultures.