the fraction or percent of a particular frequency or wavelength of electromagnetic radiation that is reflected from the surface of a substance without being absorbed or transmitted
(sol) The ratio of RADIATION reflected from a surface to that incident on the surface [See also: REFLECTIVITY (2)] F - facteur de reflexion S - reflectancia
Reflectance is the ratio of the total radiant flux, as of light, reflected by a surface to the total striking the surface
The ratio of the light reflected from a surface to the light falling on it, expressed in percentage
Reflectance is the fraction of the total radiant flux incident upon a surface that is reflected and that varies according to the wavelength distribution of the incident radiation
A spectrum consists of a set of reflectance or transmittance values for the wavelengths scanned during a measurement The term "reflectance" is used if the amount of light is measured which is diffusely reflected by the sample This is mainly the case with solid samples
{i} ratio of energy sent back from a surface to the total energy striking the surface (Physics)