Optical depth - absorbance
Description
In chemistry, a closely related quantity called “absorbance” or “decadic absorbance” is used instead of optical depth: the common logarithm of the ratio of incident to transmitted radiant power through a material, that is the optical depth divided by ln 10.
Related formulasVariables
τ | optical depth of a material (dimensionless) (dimensionless) |
A | absorbance (dimensionless) |