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A perfectly black body is one whose ___________

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A perfectly black body is one whose ___________

(a) Absorptive power is 1

(b) Absorptive power is 0

(c) Emissive power is 1

(d) Absorptive power is 0.5

I have been asked this question in my homework.

Query is from Absorption and Emission topic in division Kinetic Theory of Gases of Engineering Physics I

1 Answer

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Best answer
Right choice is (a) Absorptive power is 1

The best explanation: A black body is one which absorbs the entire radiation incident upon it. Its absorptive power is unity.

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