Pick out the wrong statement/

4800Chemical EngineeringMedium

AThe emissivity of a polished surface is quite low

BThe emissivity of a surface increases with increase in surface roughness

CThe emissivity of a surface decreases, if it gets corroded by atmospheric environment

DThe emissivity of a non-metallic surface decreases with increase in the temperature

Correct answer

C. The emissivity of a surface decreases, if it gets corroded by atmospheric environment

Explanation

The correct answer is The emissivity of a surface decreases, if it gets corroded by atmospheric environment.

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