Q.

Pick out the wrong statement.

A. The emissivity of a surface decreases, if it gets corroded by atmospheric environment
B. The emissivity of a surface increases with increase in surface roughness
C. The emissivity of a polished surface is quite low
D. The emissivity of a non-metallic surface decreases with increase in the temperature
Answer» A. The emissivity of a surface decreases, if it gets corroded by atmospheric environment
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Heat Transfer (HT)

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