In the Beer Lambert Law (equation 3) the term IT/Io is called transmittance. This form of spectroscopy has a setup similar to the one used for Absorption. Reflectance spectroscopy is the study of light as a function of wavelength that has been reflected or scattered from a solid, liquid, or gas.
Definition of metadata: Data that serves to provide context or additional information about other data. For example, information about the title, subject, author, typeface, enhancements, and size of the data file of a ...
A Managed Metadata column is a special kind of column that you can add to lists or libraries. It enables site users to select terms from a specific term set. A Managed Metadata column can map to an existing term set, or you can create a local term set specifically for the column.