What color is light 10, what color is light

The color of light is determined by the wavelength of light, and the wavelength of visible light is roughly in the range of 400-760nm, and light in this range is not visible to the human eye, just like X-rays, infrared, ultraviolet rays, etc. Moreover, the color of light decreases with wavelength, which is red, orange, yellow, green, blue, indigo, violet.

After different lights are superimposed and overlapped, they become polychromatic light, and white sunlight is the most typical polychromatic light, of course, fluorescent lamps, incandescent lamps and many other light sources are polychromatic lights.

The sunlight is 7 colors, and because it is combined, it looks white.

Answer: We see that the so-called white light is a composite light of red, orange, yellow, green, blue, and violet light.

"What color plus what color equals white? ”

To put it simply, the red, green, and blue colors of color light are synthesized into white, as shown in the figure below

That's what the picture is aboveThe three primary colors of color lightAnd then there's what we often call red, yellow, and blue, and they're all black

See image below: <>

Here it isThe three primary colors of the pigmentSo, in the end, you can't make white with pigments, but you can make white with light.

Dispersion phenomenon: the phenomenon that polychromatic light is refracted by a prism and dispersed into various color light, Newton found that white sunlight is a kind of polychromatic light, which is composed of monochromatic light with different refractive indexes.

The three primary colors of light: red, green, and blue are the three primary colors of light.

The three primary colors of the subtractive method are yellow, cyan, and magenta.

Color formation: The eye is able to perceive colored light reflected or produced by surrounding objects.

White is a mixture of all colors of light.

Black is not reflected by any light.

Dispersion in Nature:

Neon: The dispersion phenomenon caused by two refractions and two reflections. The red light is below, and the purple light is above.

Rainbow: Dispersion caused by two refractions and one reflection. Red light is on the outside, violet light is on the inside.

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And you can go and take down the relationship between the mobile phone and the computer, and you can go and see if the mobile phone and the computer are in it, you can go and see if the mobile phone and the computer are not related, and then it is like the light of white furniture, you go to see the mobile phone.

The color of light is determined by the wavelength and can also be considered to be determined by the frequency when the medium is constant. Because for describing the nature of light, the frequency and wavelength are the same. The speed of light = the frequency of light The wavelength of light, and the speed of light is a constant, so the wavelength of light and the frequency of light are one-to-one.

The wavelength of the same kind of light changes in different mediums because light will have different speeds of light in different mediums. Color is a visual effect on light that is produced through the eyes, the brain, and our life experiences. Light enters a different medium and cannot be perceived by our brain, so there is no color, and our eyes can only stay in the air, so only the light in the air has a concept of color.

Different colors of light have different wavelengths, and here are the wavelengths of various lights::

1. Red light: wavelength range: 760 622 nm;

2. Orange light: wavelength range: 622 597 nm;

3. Yellow light: wavelength range: 597 577 nm;

4. Green light: wavelength range: 577 492 nm;

5. Glaucom: wavelength range: 492 450 nm;

6. Blue light: wavelength range: 450 435 nm;

7. Violet light: wavelength range: 435 390 nm;

Factors that determine the wavelength of light:The wavelength of light is determined by both frequency and wave velocity. The frequency-closed beat rate of light remains constant during propagation, which means that the frequency does not change and the wavelength changes as the light passes through different mediums.

Therefore, the wavelength of light is determined by the frequency (color) of the light, as well as the medium through which it travels.

The formula for calculating the wavelength of light:The wavelength formula is wavelength = wave velocity frequency, i.e. = v f (where v is the wave velocity and f is the frequency, is the wavelength). The frequency is determined by the wave source, that is, when the wave is born; The speed of the wave is determined by the medium, that is, when the wave travels.