Electromagnetic spectrum
The LEDs (light-emitting diodes) used in lighting emit white light similar to that of the sun. White light is created when light's three primary colors — RGB (red, green and blue) — are present. Something that emits light is known as a light source. Light sources can be divided into natural light sources, such as the sun, stars, lightning, and bioluminescence, and artificial light sources, including incandescent lighting, fluorescent lighting, and sodium lamps. Mass is the term used to say about the quantity of matter. Any way mass is categorized into two. They are gravitational mass and inertial mass. Gravitational mass is measured … by the force exerted by the gravitational attraction. So the acceleration due to gravity is constant. More the force more the mass. Where as inertial mass is inversely related to the acceleration produced as a constant force is applied. Electricity is a term used to describe a physical process involving subatomic particles in materials. A battery does not hold electricity, but it is a store of energy that is used to make electrical processes work. Electricity involves the charged particles (electrons and protons) that make up ordinary matter. What we call 'static electricity' is a buildup or lack of electrons which are a negatively charged particle. Main article: Thermal radiation. In practice, virtually all solid or liquid substances start to glow around 798 K (525 °C) (977 degrees F˚), with a mildly dull red color, when no chemical reactions take place that produce light as a result of an exothermic process. This limit is called the Draper point. Incandescence is the emission of electromagnetic radiation (including visible light) from a hot body as a result of its temperature. Greenhouse Effect. The greenhouse effect refers to circumstances where the short wavelengths of visible light from the sun pass through a transparent medium and are absorbed, but the longer wavelengths of the infrared re-radiation from the heated objects are unable to pass through that medium.  Mirrors function by reflecting light, providing a surface that light beams bounce off at. Light striking your face then strikes the mirror and is reflected into your eye, allo … wing you to see yourself in the morning. 2 people found this useful. Answered. In Microscopes.  Visible light is usually defined as having wavelengths in the range of 400–700 nanometres (nm), or 4.00 × 10 −11 to 7.00 × 10 −11 m, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths). This wavelength means a frequency range of roughly 430–750 terahertz (THz). Like all types of light, visible light is emitted and absorbed in tiny packets called photons, and exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. Incandescence usually refers specifically to visible light, while thermal radiation refers also to infrared or any other electromagnetic radiation. For a detailed discussion of the intensity and spectrum (color) of incandescence, see the article: thermal radiation. Incandescence is the emission of electromagnetic radiation (including visible light) from a hot body as a result of its temperature. Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which is visible to the human eye and is responsible for the sense of sight. Like all types of light, visible light is emitted and absorbed in tiny packets called photons, and exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The electromagnetic spectrum is the term used by scientists to describe the entire range of light that exists. From radio waves to gamma rays, most of the light in the universe is, in fact, invisible to us! Light is a wave of alternating electric and magnetic fields. 
http://www.canon.com/technology/s_labo/light/002/02.html http://www.answers.com/Q/Which_term_is_used_to_describe_objects_that_produce_light http://www.rmcybernetics.com/science/cybernetics/electronics_volts_amps_watts.htm https://en.wikipedia.org/wiki/Incandescence http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/grnhse.html http://www.answers.com/Q/Which_term_is_used_to_describe_objects_that_are_visible_because_of_reflected_light https://en.wikipedia.org/wiki/Light https://en.wikipedia.org/wiki/Incandescence https://en.wikipedia.org/wiki/Light http://earthsky.org/space/what-is-the-electromagnetic-spectrum
which term is used to describe objects that produce light