Difference between black body and grey body radiation
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Black Body: a black body is an object that absorbs all the radiant energy reaching its surface from all the direction with all the with all the wavelengths.
Gray body: A gray body is defined as a body whose absorptivity of a surface does not varywith variation in temperature and wavelength of the incidentradiation.
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Gray body: A gray body is defined as a body whose absorptivity of a surface does not varywith variation in temperature and wavelength of the incidentradiation.
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Black-body radiation has a characteristic, continuous frequency spectrum that depends only on the body's temperature, called the Planck spectrum or Planck's law.
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