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Which one is having the lowest emissivity?

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+1 vote
in Mass Transfer by (37.1k points)
Which one is having the lowest emissivity?

(a) Polished stainless steel

(b) White marble

(c) Snow

(d) Asphalt

The question was asked by my school teacher while I was bunking the class.

I would like to ask this question from Emissivity in division Modes and Diffusion of Mass Transfer

1 Answer

0 votes
by (39.8k points)
Correct option is (a) Polished stainless steel

Explanation: Emissivity of polished stainless steel is 0.60 while that of white marble, snow and asphalt are 0.95, 0.97 and 0.90 respectively.

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