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Mechanical Engineering · Q43

Heat And Mass Transfer

Engineering and GATE · Mechanical Engineering · question 43

Q43

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
Answer
C.
Inversely proportional to
D.
None of these

Answer: Option B

Solution

Answer: Option B
Solution:
The total radiation from a black body per second per unit area is Directly proportional to fourth power of the absolute temperature. This statement is known as Stefan Boltzmann law.