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WHICH OF THE FOLLOWING IS MORE CLOSE TO A BLACK BODY? (A) BLACK BOARD PAINT (B) BLACK HOLE (C) GREEN LEAVES (D) RED ROSES [AIEEE 2002] EXPLAIN ALSO.

WHICH OF THE FOLLOWING IS MORE CLOSE TO A BLACK BODY?


(A) BLACK BOARD PAINT (B) BLACK HOLE


(C) GREEN LEAVES          (D) RED ROSES


[AIEEE 2002] EXPLAIN ALSO.

Grade:12th Pass

1 Answers

Chetan Mandayam Nayakar
312 Points
10 years ago

(A) because its absorptivity, and therefore, its emissivity is higher than (c) and (d), and a black hole does not emit anything other than Hawking radiation.

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