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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The Stefan-Boltzmann law applies specifically to a blackbody, an idealized physical body that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence, and perfectly re-emits that energy across all wavelengths.

The Stefan-Boltzmann Law, Which Relates the Energy Per Unit Area σ\sigmaσ

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