Reflectance



noun, Physics, Optics.
1.
the ratio of the intensity of reflected radiation to that of the radiation incident on a surface.
noun
1.
a measure of the ability of a surface to reflect light or other electromagnetic radiation, equal to the ratio of the reflected flux to the incident flux ρ Compare transmittance, absorptance

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  • Reflected

    verb (used with object) 1. to cast back (light, heat, sound, etc.) from a surface: The mirror reflected the light onto the wall. 2. to give back or show an image of; mirror. 3. (of an act or its result) to serve to cast or bring (credit, discredit, etc.) on its performer. 4. to reproduce; […]

  • Reflected-plan

    noun 1. a plan, as of a room, taken as seen from above but having the outlines of some upper surface, as a vault or compartmented ceiling, projected downward upon it so that a part that would appear at the right when seen from below appears on the plan at the left.



  • Reflecting

    verb (used with object) 1. to cast back (light, heat, sound, etc.) from a surface: The mirror reflected the light onto the wall. 2. to give back or show an image of; mirror. 3. (of an act or its result) to serve to cast or bring (credit, discredit, etc.) on its performer. 4. to reproduce; […]

  • Reflecting-telescope

    noun 1. See under telescope (def 1). noun 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens set into one end of a tube and an adjustable eyepiece or combination of lenses set into the other end […]



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