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The black body which is close to perfect body is?

a) translucent glass box 

b) cavity radiator

c) black holes

d) all of these

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2 Answers

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by (44.0k points)

The correct option is (c) black holes

A body is said to be a black body if it perfectly absorbs and radiates the energy but does not reflect it.  A pin hole box is an ideal black body. Black board and kajal although black in colour need not to be black body.

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Correct option is (C) black holes

Black body is an ideal object which perfectly absearbs and radiates all electromagnetic radiation.

In black hole even light con not escape it.

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