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Chemical Engineering
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Heat Transfer MCQ
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The emissivity of a surface is defined as:
The emissivity of a surface is defined as:
A. Ratio of emitted radiation to absorbed radiation
B. Ratio of emitted radiation to that from a blackbody
C. Ratio of absorbed radiation to emitted radiation
D. None of these
Explanation:
Emissivity is the ratio of radiation emitted by a surface to that emitted by a perfect blackbody.
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Heat Transfer MCQ
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