0 the degree to which an object or material reduces the intensity of light passing through it:
The slower that light is able to travel through a given medium, the higher the optical density of the medium.
The area and average optical density of each fibre is measured.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
NEW WORDS
European
May 10, 2021
WORD OF THE DAY
Shimmer
optical density