Question

define optical density
​

Answer 1

Optical density is a term used in the field of optical spectroscopy to describe the propagation of a wave through a material. The value of the optical density is calculated as the logarithmic ratio of the radiation incident on the material to the radiation transmitted by the medium.

Mark as brainliest

Thanks for the question

Answer 2

Answer:

the degree to which a refractive medium retards transmitted rays of light.