what is absorptivity?

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7 Answers
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7 Answers
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  • A measure of the ability of a material to absorb radiation, equal to the internal absorptance of a homogeneous layer of the material under conditions in which the path of the radiation has unit length and the boundaries of the layer have no influence.The fraction of radiation absorbed by a real body is called absorptivity, For an ideal blackbody, the absorptivity is 1.0 .
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  • Let's keep it very simple...... Think you are studying... How much can you understand and observe... Similarly... Now match it with science... How much of incident radiation a body can absorb... It's the body's absorptivity
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  • Absorptivity is the absorption cross section or extinction coefficient. Absorptivity varies with wavelength and is defined as the absorbance of a solution per unit path length and concentration.
    a = A/(bc)
    In older literature, the cm2/mol is sometimes used with corresponding values 1,000 times larger. In practice these units are the same, with the difference being expression of volume in either cm3 or in L. The molar attenuation coefficient is also known as the molar extinction coefficient and molar absorptivity, but the use of these alternative terms has been discouraged by the IUPAC
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  • It is the ability of material to absorb radiation or the fraction of radiation absorbed by body is called absorptivity.
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  • A measure of the ability of a material to absorb radiation, equal to the internal absorptance of a homogeneous layer of the material under conditions in which the path of the radiation has unit length and the boundaries of the layer have no influence
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  • A measure of the ability of a material to absorb radiation, equal to the internal absorptance of a homogeneous layer of the material under conditions in which the path of the radiation has unit length and the boundaries of the layer have no influence.The fraction of radiation absorbed by a real body is called absorptivity, For an ideal blackbody, the absorptivity is 1.0 .
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  • It is defined as the ability of a material to absorb radiation.
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