Derive Stefan-Boltzmann law from Wien’s law.

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Homework Help Overview

The discussion revolves around deriving the Stefan-Boltzmann law from Wien’s law, focusing on the relationships between radiation functions and temperature. Participants are exploring the connections between these two laws in the context of thermal radiation.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants express difficulty in initiating the derivation and question the specific function f(λ,T) referenced in the problem. There is an acknowledgment of hints provided, but clarity on the starting point remains elusive.

Discussion Status

The discussion is ongoing, with participants actively seeking clarification on foundational concepts and the relationships between the laws. Some have noted the existence of another thread addressing the same question, indicating a broader interest in the topic.

Contextual Notes

Participants are working under the constraints of homework rules, which may limit the extent of guidance they can receive. The hints provided suggest reliance on certain equations without proof, which may contribute to the confusion regarding the derivation process.

Tirain
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Homework Statement


Derive Stefan-Boltzmann law from Wien’s law

Hint: you can use (without proof) R(T) = -∞∫∞ R(λ,T)dλ , ρ(λ,T)=(4/c)*R(λ,T)

Homework Equations



wien's law: p(λ,T) = f(λ,T)/^5
Stefan's law : R(T) = σT^4

The Attempt at a Solution


Honestly I am having trouble just starting this problem. I know I would be able to work it out if I knew where to begin.
 
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Oh thanks!
 
Tirain said:

Homework Statement


Derive Stefan-Boltzmann law from Wien’s law

Hint: you can use (without proof) R(T) = -∞∫∞ R(λ,T)dλ , ρ(λ,T)=(4/c)*R(λ,T)

Homework Equations



wien's law: p(λ,T) = f(λ,T)/^5
Stefan's law : R(T) = σT^4

The Attempt at a Solution


Honestly I am having trouble just starting this problem. I know I would be able to work it out if I knew where to begin.

Well, the first step is: what is the function f(\lambda,T) ?
 

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