Two prisms may be arranged to first break down white light into the various colors and then to unify the rays?
368659
No, as da 1st prism 'll split it into da spectrum (VIBGYOR) & da 2nd 'll just refract da spectrum & not convert it again into white light.
214578
It will be used in reference to a prism.\n\norange light has more wavelength thanx yellow.
199551
well nwhen white light goes through a prisdim, it breaks and turns into the colors of the rainbow. so when white light goes through the atmosphere, which acts like a prism, it breaks and we mostly see the blue
666968
If it reflects all the light, it appears white. If it absorbs all the light, it appears black.
1027447
Ordinary white light, like that from the sun, is made up of many different colors all of which have a different wavelength.  Normally, when we see light from the sun, it appears colorless.  However, Isaac Newton discovered in 1666 that when he passed regular sunlight through a prism (basically, a triangular piece of glass), the prism would split the light up into a band of colors. \n\nThe band of colors is called the spectrum which appears in the order of red, orange, yellow, green, blue, indigo, and violet. \n\nWhen it rains, the air is filled with raindrops.  These raindrops act like a prism.  If sunlight passes through the raindrops at the proper angle it is split into its spectrum, which is made up of the colors of the rainbow. \n\nYou can make your own rainbow at home by filling a plastic box with water and placing it near a sunny window.  If the wall next to the window isn’t white, place a piece of white paper next to the window.  Next, place a mirror inside the box of water facing the window.  The mirror needs to be tilted towards the sunlight.  The wedge of water in the front of the mirror acts as the prism and the mirror reflects and image of a rainbow on your wall
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i have an interesting fact for you that can have several conclusions drawn from it, one of them being the existance of a multiverse.  it has to do with an unexplained phenomenon in a well-known experiment.\n\nok, this is the technical part, skip this paragraph if you are familiar with this experiment and concept. there's this experiment, the double slit experiment having to do with shining a light source through two parallel slits and having the photons(little packets of energy present on light waves) in the 2 slits of light interfere with each other to produce an interference pattern. coming through the slits, the two slits of light fan out(like how a flashlight beam is larger on the wall you shine it on then the actual opening of the flashlight.) depending on how the wavelengths of light line up at certain points, they overlap in a certain way that it undergoes constructive and destructive interference. a single wavelength kind of looks like this: ~ but it goes on continuously. so when they overlap, if a higher loop part(the crest) overlaps with another crest, or a trough(the lower loop part) overlaps with another trough, it produces constructive interference, and if a crest overlaps with a trough, it produces destructive interference.  therefore, when the beam of light is shown at the double slits, there is what is called an "interference pattern" on the screen beyond the slits.  this looks like bars of light... in the center, there is a bar of light with a bar of darkness on each side, each having another(weaker) bar of lightness on each side, and then dark and so forth. the reason for this is the wavelengths of the photons with destructive interference are annihalated by the destructive interference so there is no light in those bars, and the photons with constructive interference do show light where they hit.\n\nok, now the interesting part. scientists shown a light source at the double slits so weak that it only emits one photon at a time. so you would expect the screen(which is sensitive and records each spot where the photons hit) to pick up photons in just 2 wide bars, since they're going one at a time so they have nothing to interfere with to produce any other pattern.  however, this is not the case. they find that the one-at-a-time photons land only in where the bars of light would be.  the interference pattern is somehow still being produced. how is that possible? well there's a theory of probability waves, a theory of the photons splitting and interacting with themselves, and the theory you are intersted in. the multiverse can be used to explain this phenomenon.\n\nwell this particular theory of a multiverse says that the universe is constantly splitting. and it has an interesting conception of probability. the theory says that if there is a 50 percent chance of something happening, it will happen in half of the universes that split at that given moment. therefore, recently split universes are very similar to one another.  the theory that tries to explain this single-photon-double-slit phenomenon believes that closely split universes can interact with each other on the subatomic level.  this would mean that the single photon is interfering with the other single photons being emitted by recently split universes. this would explain the pattern.\n\nwell that's the closeset we have to actual 'evidence' concerning a multiverse, although since we can't prove for sure that it's the existence of a multiverse that's causing it, it's not very conclusive evidence.  the theory of a multiverse is not very accepted amongst the science community. probably because it would completely change the way we view everything and there's a chance you might be dead in a bunch of other universes.. according to the theory there are an infinite number of universes, so if you have a one in a million chance of getting hit by lightning, well then you're dead in one in every million of th
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The three primary colours (red, blue and yellow) can be mixed in different proportions to create an infinite number of shades and colours.
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i think it might be called a triangular prism\ni am srry that was tough i was trying to get it rite so i could get the ten points for best answer. I AM SORRY!
1149766
No, photons of light all travel at the same speed.  The different colors are because the photons oscillate at different frequencies, and the different frequencies of light are refracted (bent) at different angles with respect to the intersection with the surface of the prism (which is what the diamond acts as).  Yes, all the color frequencies exist withing white light.  In fact, pure white light almost never exists.  The spectrum of light from sources like the sun, fluorescent or incandescent bulbs all have flaws which can be read when they spectrum is spread out by a prism.  These flaws are indicative of the type of material that is producing the light.
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The best way to learn is by doing, And it is a difficult concept to understand that light can be broken.\n\nI would reccommend that you use prisms to break up the light into spectrums. you can use chandelier crystals or something like that.\n\nThen you can have them put the light back together: Heres how: get three slide projectors, and get some colored acetate in cyan (turquoise). magenta, and yellow to place in front of the projection lenses OR Better Yet take slides of peices of paper that are these colors and place one in each of the slide projectors. If you angle the projectors so that the projections overlap, it should form white light.
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droplets of water in the air refract light and break it into the visible specturm. thats way you see the different colors.
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you either need more information, or this is a trivial problem. \n\ni am assuming the two surfaces of the glass are parallel to each other, so it's not a prism or lens, but a thin flat plate.\n\ntreating it very simply, you could argue that energy is conserved, so the irradiance (which is energy per second per square meter) must be conserved.  the speed of light is fixed in air, so the "per second" part is fixed too.  if the glass surfaces are not angled with respect to each other, then the light leaves the glass taking up the same area that it went in with.  this means the irradiances are the same.\n\nthis is a simplistic physical model, though.  realistically, you will get some reflection at the air-glass interface, reflection at the glass-air interface, and some absorption (both in the air and in the glass).  you need a lot more details about the problem to say anything meaningful though.
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Given a bit of thought:  \nIf you are basing this decoding entirely on light, then there is a possibility that occurred to me.  Your mention of polarized ink gave me an idea.  \n\nFrom the basic idea, the color white is merely something that reflects all of the visible wavelengths back to you, not absorbing any colors at all.  This makes it seem very bright, because all of that energy reaches your eyes.  \n\nIf you can create a pure white ink (or same white as the paper) from pigments -- probably water-based so that they would not form texture -- then you may be able to create a white ink that is truly a mixture of the wavelengths.  Then if you have a pair of glasses that filter one color (like a camera), you would see the remaining colors and the writing would be visible.\n\nNow, I have never tried this and don't know that it would work, but given the energies of the color wavelengths, I think it would be easier to see if you filter the blue/violet end of the spectrum so that you see the red end.  This should show with more contrast, making it easier to read.  \n\nI do not know that it would be possible to so precisely filter one particular color.  If you create this white ink, it is possible that some mixing would mean your colors would not be perfect.  If you don't see anything right away, try all 7 combinations of the filters for a camera lens -- red blue and yellow each alone, two of each mixed, and all three together.  (And any others you can find.)  \n\nThis is just a springboard idea, and I do not know that it would work.  But if you do get it working let me know!  I would be very interested in knowing if my hypothesis has a practical application!
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A right rectangular prism has six faces.
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a prism-oops to late--http://en.wikipedia.org/wiki/Triangular_prism actually a triangular prism. Thanks :-)
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In the case of a prism, the light changes mediums twice, i.e., two angles of incidence and reflection.
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The moving photons in the ray of light can be calculated as a vector because they have a direction and a numerical quantity.