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We decided to call light by different names depending on what range its wavelengths fell into, and the names we chose (in English) were "red" for some of the longest ones we could see, "green" for some a bit shorter, and "blue" for some even shorter than that. I really get the feeling you were trying to ask a different question (with a better answer than "because they are") here, but I'm not sure what it might be.

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16y ago

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What color has a wavelength shorter than blue?

The colors with a wavelength shorter than blue are the violet or purple colors. They have shorter wavelengths because they are higher on the electromagnetic spectrum, meaning they have higher frequency. They also have higher energy, too.


Why isn't the sky purple?

The sky appears blue because of the way Earth's atmosphere scatters sunlight. Blue light is scattered more than other colors because it travels in shorter, smaller waves. This scattering effect makes the sky look blue to our eyes. If the sky were to appear purple, it would mean that shorter wavelengths of light, like violet, are being scattered more than blue light. However, this is not the case in our atmosphere, so the sky does not appear purple.


In which color scattering is maximum?

Scattering is maximum for shorter wavelengths, such as violet and blue light, due to their higher frequency and energy. This is why the sky appears blue during the day, as shorter blue wavelengths are scattered more than longer red wavelengths by the gases and particles in the atmosphere.


What color is least visible to the human eye and why?

The color least visible to the human eye is blue. This is because the human eye is less sensitive to shorter wavelengths of light, such as blue, compared to longer wavelengths like red and green.


How reflection from objects that appear blue differs from objects that appear yellow?

Objects that appear blue reflect shorter wavelengths of light, while objects that appear yellow reflect longer wavelengths. This difference in reflected light wavelengths creates the perception of different colors to our eyes. Reflecting shorter wavelengths results in the perception of blue, while reflecting longer wavelengths results in the perception of yellow.

Related Questions

What color has a wavelength shorter than blue?

The colors with a wavelength shorter than blue are the violet or purple colors. They have shorter wavelengths because they are higher on the electromagnetic spectrum, meaning they have higher frequency. They also have higher energy, too.


Why isn't the sky purple?

The scattering of sunlight by the Earth's atmosphere causes shorter blue wavelengths to be dispersed more widely, making the sky appear blue to our eyes. This effect is more pronounced than the scattering of longer red wavelengths, resulting in a blue sky instead of a purple one.


Why do mountains look purple in the distance?

Mountains can appear purple in the distance due to atmospheric scattering of light. When sunlight passes through the atmosphere, shorter wavelengths like blue and green are scattered, while longer wavelengths like red and purple are allowed to pass through. This causes distant mountains to appear blue or purple as the shorter wavelengths are filtered out by the atmosphere.


Why are sunsets red purple blue color's wavelengths?

Sunsets appear red, purple, and blue due to scattering of sunlight by particles and molecules in the atmosphere. When the sun is low on the horizon, its light has to pass through a greater thickness of the atmosphere, scattering shorter wavelengths like blue and green, leaving behind the longer wavelengths like red and purple to dominate the sky.


Why isn't the sky purple?

The sky appears blue because of the way Earth's atmosphere scatters sunlight. Blue light is scattered more than other colors because it travels in shorter, smaller waves. This scattering effect makes the sky look blue to our eyes. If the sky were to appear purple, it would mean that shorter wavelengths of light, like violet, are being scattered more than blue light. However, this is not the case in our atmosphere, so the sky does not appear purple.


Why does the sky look blue and the sun look yellow during the day?

The sky looks blue due to Rayleigh scattering, where shorter blue wavelengths are scattered more than longer red wavelengths by gases and particles in the atmosphere. The sun appears yellow or orange as its white light is dispersed by the atmosphere, causing shorter blue wavelengths to scatter and leaving longer red and yellow wavelengths to be more visible.


Are violet and purple the same?

Violet and purple are similar colors but not exactly the same. Violet is a spectral color with shorter wavelengths, while purple is a mix of blue and red. In general, violet appears more bluish and purple appears more reddish.


In which color scattering is maximum?

Scattering is maximum for shorter wavelengths, such as violet and blue light, due to their higher frequency and energy. This is why the sky appears blue during the day, as shorter blue wavelengths are scattered more than longer red wavelengths by the gases and particles in the atmosphere.


Are violet and purple the same color?

Violet and purple are similar but not the same color. Violet is a spectral color with shorter wavelengths, while purple is a mix of red and blue. Purple is often seen as a darker, more saturated version of violet.


What color is least visible to the human eye and why?

The color least visible to the human eye is blue. This is because the human eye is less sensitive to shorter wavelengths of light, such as blue, compared to longer wavelengths like red and green.


How reflection from objects that appear blue differs from objects that appear yellow?

Objects that appear blue reflect shorter wavelengths of light, while objects that appear yellow reflect longer wavelengths. This difference in reflected light wavelengths creates the perception of different colors to our eyes. Reflecting shorter wavelengths results in the perception of blue, while reflecting longer wavelengths results in the perception of yellow.


Discuss How reflection from objects that appear blue differs from objects that appear yellow?

Objects that appear blue absorb longer wavelengths of light and reflect shorter, blue wavelengths. This is due to the molecular structure of the object, which selectively absorbs and reflects light. In contrast, objects that appear yellow absorb shorter, blue wavelengths and reflect longer, yellow wavelengths, resulting in the perception of the color yellow.