What is a perfectly black body? Show how it can be realised experimentally.
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a theoretical object that absorbs all radiation incident on it and a body which emits the greatest amount of energy at a given temperature.
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- We know that all bodies reflect some amount of light from them which gives them the colour.
- They appear in but only a body that absorbs all the light coming on it will have no colour or black colour in it and search body is called a black body.
- Experimentally we can say the body that is talked about is acting as a sink of energy that comes out of source or that takes in all the light that is falling on it without any kind of reflection taking place.
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