Total emissivity of polished silver compared to black body is?

Question

Total emissivity of polished silver compared to black body is?

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Very much lower

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 4

A polished silver surface has an emissivity of about 0.02 near room temperature. Black soot absorbs thermal radiation very well; it has an emissivity as large as 0.97

4 views Answered 2022-09-01 13:21