Is Stefan–Boltzmann law valid for light reflection

In summary, the Stefan-Boltzmann law is a fundamental law of thermodynamics that relates the total amount of thermal radiation emitted by an object to its temperature. It is valid for all objects that emit thermal radiation and can even be applied to non-blackbodies with the use of a correction factor known as emissivity. While it does not directly relate to light reflection, it does take into account both emitted and reflected light. The law has been extensively studied and experimentally validated, making it an important concept in many fields of science and engineering.
  • #1
sawer
65
2
Stefan-Boltzmann_Equation.005.jpg


I know emissivity parameter of Stefan-Boltzmann equation is related to both "absorption" and "emission" of the material.

But is it related to "reflection" property of an object?

If not what is the parameter that makes an object shiny?
 
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  • #2
But is it related to "reflection" property of an object?
Not directly.
If not what is the parameter that makes an object shiny?
Coherent absorption and re-emission. You can get reflection (instead of random scattering) if waves are a good model for the interaction of light with the material.
 

1. What is the Stefan-Boltzmann law?

The Stefan-Boltzmann law is a physical law that relates the total amount of thermal radiation emitted by a blackbody to its temperature. It states that the total energy emitted per unit surface area of a blackbody is directly proportional to the fourth power of its absolute temperature.

2. Is the Stefan-Boltzmann law valid for all objects?

Yes, the Stefan-Boltzmann law is a fundamental law of thermodynamics and is valid for all objects that emit thermal radiation, including blackbodies and non-blackbodies.

3. How does the Stefan-Boltzmann law relate to light reflection?

The Stefan-Boltzmann law does not directly relate to light reflection. Instead, it describes the total amount of thermal radiation emitted by an object, which includes both emitted and reflected light.

4. Can the Stefan-Boltzmann law be applied to non-blackbodies?

Yes, the Stefan-Boltzmann law can be applied to non-blackbodies by using a correction factor known as the emissivity. The emissivity takes into account the reflective properties of an object and adjusts the total emitted thermal radiation accordingly.

5. Is the Stefan-Boltzmann law experimentally validated?

Yes, the Stefan-Boltzmann law has been extensively studied and experimentally validated. It has been shown to accurately predict the thermal radiation emitted by objects at different temperatures, making it a crucial component in many fields of science and engineering.

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