MCQ
Relation between emissivity $e$ and absorptive power $a$ is (for black body)
  • $e = a$
  • B
    $e = \frac{1}{a}$
  • C
    $e = {a^2}$
  • D
    $a = {e^2}$

Answer

Correct option: A.
$e = a$
a
(a)For a black body emissivity = absorptive power.

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