1. If I were in a photography room with a red light shinning on a green shirt that I was wearing my shirt would look to be black. My shirt would look this way because there is various substances called pigments and the pigments absorb certain wavelengths of light and reflect others. In the pigment when red and green combine they make black because they are opposites. These two colors would have a reflection to the human eye and we would see black.
2. In class we had a light yellow filter, which is made up of a lot of light. This light filter is really close to the color white, but it is also made up of many other colors. Yellow has a lot of red light so the light yellow would allow a lot of red light through. If the yellow would be a dark yellow then the filter would be using less light and that also means less colors. If we had a darker yellow then there would be less light and the yellow would contain a lot less red and wouldn’t be able to see as many colors as a light yellow filter.
3. This is the link to the 3D image that I chose.

https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRGCXrD9LiF09ouVs3iBxYffoGAA58cVDEW5iko3sU3rrOhwQsV

This is another link that ties in with the 3D effect elaborating on how the 3D glasses work. It summarizes how it does not allow one eye to see blue light and the other to see red light through the glasses.

http://www.3dglassesonline.com/learn/how-do-3d-glasses-work

The 3D effect works because it still is filtering colors through different lenses. In movies we wear those glasses and those filters allow us to see the objects in 3D. With films and cameras, the pictures are taken from two different angles. Once these are taken then the photos are combined together. One of the photos is combined with a red hue and then the other is combined with a cyan hue. When you put the glasses on they then filter out one of the two images in each of the lenses. This causes your eyes to think that they are seeing the image from two different angles and our brains are confused and fooled that we see the image in 3D just as we do with real life objects.

https://science.howstuffworks.com/light.htm

This is an interesting article on how light works in the world and talks about how Albert Einstein tried to imagine light in many ways.

https://www.delmarfans.com/educate/science-behind-how-light-works/

This article that I found also deals with how light is perceived and also talks about the electromagnetic spectrum. This article talks about the Vision of Light, Color of Light, Lighting Metrics, and also Manipulating Light as a Design Feature.