What is a perfect blackbody? How can it be realized in practice ?
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perfectly black body is that which absorbs completely the radiations of all wavelengths incident on it. ... (6) A perfectly black body can not be realised in practice but materials like Platinum black or Lamp black come close to being ideal black bodies. Such materials absorbs 96% to 85% of the incident radiations.
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A perfect blackbody or simply a blackbody is defined as a body which absorbs all the radiant energy incident on it.
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