Anonymous
Anonymous asked in Science & MathematicsOther - Science · 1 decade ago

# How could we prouve that white light contains a mixture with different wavelengths? (colors)?

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If you shine a white light through a prism, the light is refracted and you get a rainbow. Thats how you can see the different wavelengths in white light.

• Doctor
Lv 7

My first response is that you can break light up into different wavelengths by using a prism. But then I thought, how can you prove that the prism just didn't create a bunch of colors from the color "white?"

Try this easy experiment. Look around when you see things with white light. Do you see colors? That proves that white contains a mixture of colors (unless you are color blind). You see, if you had only a pure red light the only color you could see would be red. Red things would look red, but green things would look black. That's because what green objects do is absorb all the colors except green, which is scattered away from the green object. When there is no green in the light which shines on a green object, there is nothing to scatter back into your eye. So it all gets absorbed, and it looks black to you. A word of caution if you try to check this out. Many colored lights are not purely one color, and many objects are not pure colors either. But if you have reasonably pure colors you will see the effect.

• schur
Lv 4
3 years ago

Prouve Light

• bobbi
Lv 4
3 years ago

trouble-free. whilst white gentle is shined by a prism, the various surfaces bend the sunshine so as that the spectrum (rainbow) is shaped. The spectrums' colours could be divided no further. this could advise that the colored gentle that we see whilst white gentle passes by a prism is, certainly, the white gentle itself. ^_- in addition they make those neato little tubes which you would be able to seem at white gentle and notice it as colored gentle. the colors rely on the splendid wavelength of the colour itself, and how lots the colour is refracted because it is going in the process the prism. the colors are, so as, crimson Orange Yellow green Blue Indigo Violet ROYGBIV.

• Anonymous

With a prism. Shine a white light throught it . See the scattering of light into a rainbow of colours.