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What does human made source of light mean?
That is any source of artificial light (not a naturally occurring light)oil lampsgas lampscampfireselectric lampscandlesetc.
What is one benefit of using a fluorescent light source?
Consumes less energy that the equivalent incandescent light source.
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.
Is the sun your only natural light source?
Yes, the sun is the primary natural light source for Earth.
One examples of a natural light source?
The sun
What is light source that has only one wavelength of light and will not spread out when passed through a prism is defined as?
A laser is a light source that has only one wavelength of light and will not spread out when passed through a prism. The light produced by a laser is coherent, meaning all the photons are in phase with one another.
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
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.
Why is candle a primary light source?
Candles have been a primary light source historically due to their portability, ease of use, and accessibility of materials for their production. Additionally, candles provide a warm and natural-looking light that can create a cozy atmosphere in a variety of settings.
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.
Type of light source that reflects light rays?
Light doesn't reflect light, nor does any other electromagnetic radiation.
