# Answer to Question #1921 in Atomic and Nuclear Physics for aakriti goel

Question #1921

State and prove Stefan's law?

Expert's answer

The total energy radiated per unit surface area of a black body per unit time is proportional to the fourth power of the absolute temperature:

j = σ T4

It can be derivad by integrating of the intensity of the light emitted from the blackbody and from the thermodynamic laws. For more detailed explanations submit this question to our control panel and our experts will assist you.

j = σ T4

It can be derivad by integrating of the intensity of the light emitted from the blackbody and from the thermodynamic laws. For more detailed explanations submit this question to our control panel and our experts will assist you.

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