15 Questions
- What is the definition of illuminance and how is it measured?
Illuminance is the amount of light incident on a surface, referring to the intensity of light per unit area. It is measured by the normal luminous flux per unit area received by it.
- What is the definition of reflectance (P) and how is it calculated?
Reflectance (P), also known as Reflection Factor or Coefficient of Reflection, is given by the ratio of luminous flux reflected from a small area of a surface to the total flux incident upon it.
- What is the definition of transmittance (T) and how is it defined?
Transmittance (T) is defined as the ratio of the total luminous flux transmitted to it to the total flux incident on it.
- What is the definition of absorptance (A) and how is it calculated?
Absorptance (A) is the ratio of the light absorbed versus the light striking the surface.
- What is the definition of utilization factor?
Utilization factor is the ratio of the lumens actually received by a particular surface to the total lumens emitted by the luminous source.
What does the term 'luminance' refer to?
The amount of light leaving an object
How is 'transmittance' defined?
The ratio of light transmitted to the total incident flux
What is the 'utilization factor'?
The ratio of lumens actually received by a particular surface to the total lumens emitted by the luminous source
How is 'reflectance (P)' defined?
The ratio of luminous flux reflected from a surface to the total incident flux
What is 'illuminance'?
The intensity of light per unit area
What is the definition of illuminance?
The intensity of light per unit area
How is 'luminance' defined?
The amount of light leaving an object
What is the 'utilization factor'?
The ratio of the lumens actually received by a particular surface to the total lumens emitted by the luminous source
How is 'reflectance (P)' defined?
The ratio of luminous flux reflected from a small area of a surface to the total flux incident upon it
What does the term 'transmittance (T)' refer to?
The ratio of the total luminous flux transmitted to it to the total flux incident on it
Test your knowledge about light, visible light, and illuminance with this quiz. Explore the different forms of light energy and its impact on human vision.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
