Radiation fundamentals: parameters controlling emitted thermal radiation Which factors mainly affect the amount of thermal radiation emitted by a surface/body? Choose the correct option.
Mechanical Engineering
Heat Transfer, Refrigeration and Air Conditioning
Difficulty: Easy
Choose an option
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ANature of the body (emissivity/spectral behavior)
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BTemperature of the body
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CType and condition of the surface (polished/oxidized/rough)
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DAll of these
Answer
Correct Answer: All of these
Explanation
ConceptRadiative emission depends strongly on temperature (∝ T⁴ for blackbodies) and on material/surface properties through emissivity (nature and surface finish).
Final AnswerAll of these.