Answer | Crossword Clue |
---|---|
reflectances | REFLECTANCE, the ratio of reflected radiation to incident radiation |
reflectance | the ratio of reflected radiation to incident radiation |
retroreflector | a device that reflects radiation so that the paths of the reflected rays are parallel to those of the incident rays |
retroreflectors | RETROREFLECTOR, a device that reflects radiation so that the paths of the reflected rays are parallel to those of the incident rays |