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

1 Answer

Answer :

(D) α = 1; ε = 1

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