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name one source of artificia light?
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∙ 15y ago
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Why is candle a primary light source?
because its main source that gives it to light is one of the main source of light
What does human made source of light mean?
That is any source of artificial light (not a naturally occurring light)oil lampsgas lampscampfireselectric lampscandlesetc.
Is there two shadows if there are two light source?
Depends on the position of the light source. If the light source is in a straight line, there will be 2 shadows, one is the object and the second will be the first light souce, if lets say the object is place in the center, and one light source is place in the north direction and one in the south, there will be 2 shadow at diffrent location.
What is one benefit of using a fluorescent light source?
Consumes less energy that the equivalent incandescent light source.
One examples of a natural light source?
The sun
How does a shadow change when the light source is moved?
Depends where the light source is located and how many. Light will diffract around objects, so depending on the size of the object and the distance the light source is from it, more than one shadow can be cast, or at least it can have larger or smaller blurry edges which change when the light source is moved.
What does the umbra and the penumbra have to with with eclipse?
An umbra is formed when an object blocks all of the light from a light source. A penumbra is formed when light from one source is blocked with light from another source filling in some of the shadow, OR when a large light source is only partially blocked. http://www.learner.org/workshops/sheddinglight/highlights/highlights1.html
Difference between shadow and reflection?
A shadow is the absence of light, a reflection is just that, the reflection of light. So a shadow comes from blocking a light source, a reflection comes from the bouncing of light of one source and on to another
What is the primary source of light in the universe as well as why planets and moons appear to look shiny?
There is no 'primary light source', as in one object that provides most of the light. In this solar system, our sun provides the primary light source. Other stars provide most of the light for other areas of the galaxy. The source of the shininess is light reflecting off the atmospheres or gases surrounding the planet. Please note that you should restrict your posts to one question per post.
To what is the illumination of a surface by a light source directly proportional?
The illumination on the surface would be reduced by a factor of four, thereforeif the distance from a light source is doubled, the illumination provided by the source is one fourth as great.
What are two sources of visible light waves?
A primary light source is one that actually produces light, such as a light bulb or the sun. A secondary light source in one that ONLY reflects the light produced by a primary light source. It doesn't produce light itself, such as a mirror or the moon.
Is the sun your only natural light source?
no your mom is one also
