Q447
In thermal radiation for a black body (where, ε is emissivity and α is absorptivity)
A.
α = 1; ε ≠ 1
B.
α ≠ 1, ε = 1
C.
α ≠ 1, ε ≠ 1
D.
α = 1; ε = 1
AnswerAnswer: Option D
Solution
Answer: Option D
No explanation is given for this question Let's Discuss on Board