10 Questions
What is the SI unit of luminous flux?
Lumen
Which unit is used to measure illuminance?
Lux
In terms of visible light, what is the part of the electromagnetic spectrum that can be detected and seen by the eye called?
Visible light
Which type of waves move energy as well as momentum from one place to another?
Electromagnetic waves
What is the speed of electromagnetic waves in a vacuum?
$3 x 10^8$ meters per second
Which type of lighting can be used to supplement daylighting?
Artificial lighting
What is the recommended unit for measuring the level of light on a surface?
Lux per square meter
What does visible light enable?
Sense of sight
'They travel in a direction perpendicular to particle vibration.' This statement describes the nature of which type of waves?
Transverse waves
'They move energy as well as momentum from one place to another.' This statement is applicable to which type of waves?
Electromagnetic waves
Test your knowledge on the different wavelengths of visible light that make up the colors of the rainbow, as well as non-visible radiations such as ultraviolet light, infrared light, and radio waves. Learn about their properties and effects on the environment and human health.
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