If a heat transfer surface is pock-marked with a number of cavities, then as compared to a smooth surface the heat transfer by __________ will not increase.
A. Convection
B. Nucleate boiling
C. Radiation
D. Conduction
Answer: Option A
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Why
Correct answer should be Radiation coz in radiation we consider normal surface area
Correct answer should be Radiation coz in radiation we consider normal surface area
i think it is wrong