Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning - Discussion

25. 

The total radiation from a black body per second per unit area is __________ fourth power of the absolute temperature. This statement is known as Stefan-Boltzmann law.

[A]. equal to
[B]. directly proportional to
[C]. inversely proportional to

Answer: Option B

Explanation:

No answer description available for this question.

Syed Khaja Mohinuddin said: (Feb 8, 2015)  
j=(sigma)T^4.

Omprakash Kumar said: (Feb 24, 2017)  
Example of black body:- Ice, sun, Small cavity on hollow spherical body.

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