It is from theory of colours.
2006-12-03 18:49:34 · 12 answers · asked by Marina S 2 in Science & Mathematics ➔ Chemistry
Any color rays other then Red color are allowed to pass through and hence the plate appears red.
2006-12-03 20:09:57 · answer #1 · answered by Siva 2 · 1⤊ 0⤋
I'm not quite sure of your question, but if you are asking what colour doesn't pass through a red transparent plate then it will be the colour red; that's why it looks red because all the other colours are able to pass through it except for red. If however, the plate is only transparent to red then only red will pass through whilst all the other colours of the spectrum are blocked; this can be proved by placing a white card the other side of the plate and if it is lit up only red then you will know.
2006-12-03 18:59:00 · answer #2 · answered by darestobelieve 4 · 0⤊ 1⤋
I think you are confusing everybody. Only red can pass through red plate and all the other colours will not be able to pass through. Even if yellow which is made up of red and green, is incident on the transparent red plate, only red will go through and the green component is absorbed.
This is the basic theory in using coloured filters in photography and theatrical lighting.
2006-12-04 01:24:39 · answer #3 · answered by pete 2 · 0⤊ 0⤋
Red light passes through it. The colors that don't pass through it are the colors other than red. But it depends on the purity of the red. If it's reddish, some combination of colors that looks mostly red, that impurity means some other colors pass through it too. Depending on the material, different colors of light are absorbed by it in different amounts. If it looks red, it means red is not absorbed by it as much, and other colors are absorbed a lot more.
To prove that the material absorbs the missing colors, and doesn't just reflect them the other way, simply look at the plate from both directions, and notice that it's red regardless.
The missing colors generally become heat, making the plate slightly warmer. In some cases they can cause other effects than just heat, depending on the material. But it's usually mostly heat.
On the other hand, if you touch the warm red plate that makes a brake light red, that warmth mostly comes from the light bulb, by convection, conduction, and the radiation of the infrared from the heat of the light bulb. The warmth generated by absorbing the non-red light is only a small part of the heat you feel.
2006-12-03 19:19:16 · answer #4 · answered by x4294967296 6 · 0⤊ 1⤋
The colors we see are those that are absorbed by the pigments within the object. Therefore, understanding this concept, if something is a red transparant plate, then the color that does not pass through out of the color matrix is red.
2006-12-03 19:00:44 · answer #5 · answered by tmschiff747 2 · 1⤊ 1⤋
Acutally it's red that passes through.
Think of it this way. If some thing is colourless and transparent, all the light passes through .i.e white.
If it's black, it's all absorbed.
2006-12-03 20:51:56 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Violet and blue are completely absorbed, ie don't pass through. Most of the yellow and green will be absorbed as well. The red light is what passes through and is not absorbed because that is what you see.
2006-12-03 19:23:29 · answer #7 · answered by cstspeedy 6 · 0⤊ 1⤋
What we see with the naked eye are the reflected light and not the absorbed light. So if we are able to see the red color, it is the violet color that has been absorbed and vice versa. That is why when all colors are absorbed we see the color white, because we see the reflected light, likewise when no color is absorbed, we see all the colors which come out as a black color.
2006-12-03 19:29:16 · answer #8 · answered by ? 7 · 1⤊ 1⤋
It would be red wouldn't it, because the object isn't actually red it has properties that trap the red rays iirc.
2006-12-03 18:59:02 · answer #9 · answered by Anonymous · 0⤊ 1⤋
Red will filter out red. The result will be a black shadow.
2006-12-03 18:53:21 · answer #10 · answered by Bart S 7 · 0⤊ 1⤋