What do you mean by absorptivity?
(ˌæbsɔːpˈtɪvɪtɪ , -zɔːp- ) noun. physics. 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.
(ˌæbsɔːpˈtɪvɪtɪ , -zɔːp- ) noun. physics. 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.
