Emissivity of a white polished body in comparison to a black body is?

Question

Emissivity of a white polished body in comparison to a black body is?

Higher
Lower
Same
Depends upon the shape of body

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

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AhmedNazir · Accepted Answer · 2022-09-01T13:21:41+06:00

AhmedNazir

Answer: Option 2

White body reflects all incident radiation; i.e., its absorptivity is zero. Accordingly, its emissivity is also zero. So any black or even "grey" body will have a higher emissivity,

4 views Answered 2022-09-01 13:21