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(Includes answer to the question "Name ten sources of (visible) light")
All light originates in the emission of photons from electronic or nuclear processes, however those processes come in a variety of flavors, such as:
1. Thermal emission, consisting of "black body" radiation from hot objects such as incandescent light bulb filaments, and many other examples.
2. Molecular emission, such as that from hot gases in the flame of an oxyacetylene torch.
3. Phosphorescence, the delayed emission of light from a material after it has been stimulated, such as from the screen of a CRT tube after it is bombarded by electrons.
4. Fluorescence, the direct emission of light by some substances when they are stimulated by electrons or electric currents, such as an ordinary fluorescent light bulb.
5. Bioluminescence, such as the light emitted by Fireflies by means of chemical processes. Other examples include certain worms and fish.
6. Chemiluminescence, light emitted in chemical reactions other than in living things.
7. Sonoluminescence, light emission by the collapse of tiny bubbles in a fluid stimulated by sound waves.
8. Cerenkov or Cerenkov radiation, which is emitted when particles move faster than the speed of light through a medium (not faster than the speed of light in a vacuum).
9. Spontaneous emission, such as in a Light Emitting Diode (solid state) or Neon Bulb (Gaseous state) when stimulated by an electric current.
10. Stimulated emission, such as a laser.
11. Scintillation, a variation of fluorescence in which, for example, some substances emit light when struck by a subatomic particle.
12. Cyclotron radiation, which occurs when electrons are decelerated, whether in a straight line or by curving, as in a Cyclotron.
(Partially adapted from the entry on "Light" on Wikipedia.)
What else can I help you with?
What are some of sources of light?
Sun light Moon light Candle light Fire light Torch light Star light Morning light Electric light
How are you able to see the non light sources?
We can see non-light sources through the reflection or emission of light. Objects that do not produce their own light can still be visible if they reflect light from other sources, such as the sun or artificial lights. Additionally, some materials can emit light through processes like fluorescence or incandescence when they absorb energy. Our eyes detect this reflected or emitted light, allowing us to perceive these non-light sources.
What is the light sources made by people called?
Man-made light sources... lamp, torch, LCD etc.
How many different sources of light is there?
There are many sources of light, but they can generally be classified into natural sources (such as the sun, stars, and fire) and artificial sources (such as light bulbs, candles, and LEDs). Each source of light emits light in a different way and with different characteristics.
What are the two sources that light comes from?
Natural light sources include the sun and celestial bodies such as stars. Artificial light sources include light bulbs, fluorescent lights, and LEDs.
Does every light source emit only one type of light, or can some light sources emit multiple types of light?
Some light sources can emit multiple types of light, such as white light sources that emit a combination of different colors.
What are some of sources of light?
Sun light Moon light Candle light Fire light Torch light Star light Morning light Electric light
What are examples of secondary light sources in a home?
Some examples of secondary light sources in a home include:lampsrecessed lightingnight lights
What re some natural light sources?
starsfireflieslightningfire
What are light sources and non light sources?
The sources that can give out their own light are "Light Sources" and the same opposite the sources which can not give out their own light are know as Non Light Sources .
What are common sources of light?
Some common sources of light are celestial light (stars/the sun), oil, gas, fire, and bioluminescent objects.
What are some Sources of light energy?
The Sun, Stars, Light Bulbs, Fires, Fluorescent Lamps
What are some practical sources of infrared light?
A television remote control is a source of infrared light.
What are some natural and artificial source of lights?
Natural sources : sun, firefly Artificial sources: oil lamps, tube lights
How are you able to see the non light sources?
We can see non-light sources through the reflection or emission of light. Objects that do not produce their own light can still be visible if they reflect light from other sources, such as the sun or artificial lights. Additionally, some materials can emit light through processes like fluorescence or incandescence when they absorb energy. Our eyes detect this reflected or emitted light, allowing us to perceive these non-light sources.
What are the powered sources of light?
Some powered sources of light include incandescent bulbs, fluorescent tubes, LED lights, and halogen lamps. These sources rely on electricity to generate light through different mechanisms such as heating a filament or exciting gas molecules.
What are the two main sources of light energy?
The two main sources of light energy are natural light from the sun and artificial light from sources like light bulbs and lamps. Both sources produce electromagnetic radiation that our eyes perceive as light.
