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

Discussion Forum : Heat Transfer, Refrigeration and Air Conditioning - Section 1 (Q.No. 25)
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.
equal to
directly proportional to
inversely proportional to
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Omprakash Kumar said:   9 years ago
Example of black body:- Ice, sun, Small cavity on hollow spherical body.

Syed Khaja Mohinuddin said:   1 decade ago
j=(sigma)T^4.

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