Sunlight, or visible light, is made of all the rainbow colors: red, orange, yellow, green, blue, indigo, and violet. The light travels in waves that are too small and fast for us to see. Colors like red, orange, and yellow travel in longer waves and have less energy.
The seven colour idea is still a popular one and it helps remember the order of the most recognisable colours in a rainbow. However, remember that there is also a whole range of colours, so many that we cannot distinguish them all with the naked eye.
The colours of the rainbow are: Red, orange, yellow, green, blue, indigo, violet. Can you find items from around the house in each of the seven colours? How many red items can you find? How many green?
A rainbow has seven colors because water droplets in the atmosphere break sunlight into seven colors. A prism similarly divides light into seven colors. When light leaves one medium and enters another, the light changes its propagation direction and bends. This is called refraction.
Hence, the white light is composed of seven different colors namely (violet, indigo, blue, green, yellow, orange, and red).
White light is called as white because it consists of seven colors. The sunlight splits into seven colors namely violet, indigo, blue, green, orange, and red. We usually call it as VIBGYOR. When we mix all these colors we just get one light which is the WHITE light.
A Newton's disc can be created by painting a disc with the seven different colours: violet, indigo, blue, green, yellow, orange and red. When the disc is rotated, it appears white. This explains that white light consists of seven colours.
It is a common misconception that the Sun is yellow, or orange or even red. However, the Sun is essentially all colors mixed together, which appear to our eyes as white. This is easy to see in pictures taken from space. Rainbows are light from the Sun, separated into its colors.
The other colours pass through the Earth's atmosphere to reach us, but because of the great abundance of blue light wavelengths, our eyes see the sky as blue. Technically, the short wavelengths that scatter across the sky correspond to the colours blue and violet, making the real colour of the sky a bluish purple.
Every rainbow that shines in the sky consists of seven colors. Furthermore, these colors are Red, Orange, Yellow, Green, Blue, Indigo, and Violet. Commonly people call them VIBGYOR that is a short form of these colors.
There are 12 different kinds of single arc rainbows that are decided based on the colors, strength of the bands, and supernumerary bows that appear, or don't appear, in the arc. Here are the basics: RAB-1 has all the colors visible, strong Alexander band, and supernumerary bows.
After the flood, God made a covenant with Noah and all his descendants that never again would the human family be threatened with total annihilation by flood. The sign God gave Noah to assure him of this covenant was the rainbow. “Whenever the rainbow appears in the clouds I will remember my covenant.”
Blue is a tough color to spot in nature because there is no naturally occurring blue compound to color things blue. This is why blue rocks and minerals are so rare and why it was so pricey back when the Egyptians began mining the vibrant blue lapis lazuli mineral thousands of years ago.
The color blue that is found in foods, plants, and animals lacks a chemical compound that makes them blue, which makes the natural blue pigment so rare.
Your brain interprets the various energies of visible light as different colors, ranging from red to violet. Red has the lowest energy and violet the highest.
As a perfect mirror reflects back all the colours comprising white light, it's also white. That said, real mirrors aren't perfect, and their surface atoms give any reflection a very slight green tinge, as the atoms in the glass reflect back green light more strongly than any other colour.
Since there is virtually nothing in space to scatter or re-radiate the light to our eye, we see no part of the light and the sky appears to be black.
As the sunlight has passed through all this air, the air molecules have scattered and rescattered the blue light many times in many directions. Also, the surface of Earth has reflected and scattered the light. All this scattering mixes the colors together again so we see more white and less blue.
The water is in fact not colorless; even pure water is not colorless, but has a slight blue tint to it, best seen when looking through a long column of water. The blueness in water is not caused by the scattering of light, which is responsible for the sky being blue.
The Sun would have to emit only green light for our eyes to perceive it as green. This means the actual colour of the Sun is white. So, why does it generally look yellow? This is because the Earth's atmosphere scatters blue light more efficiently than red light.
Our Sun is white, and it would look white if you looked at it from space. The atmosphere scatters sunlight, especially light of shorter wavelength, i.e. blue light. So the Sun appears slightly orange-ish as a result. The missing blue light isn't really missing at all, it's what makes the sky blue!
The colour red is seen as a symbol of love. Valentine's Day, the day of love, is celebrated each year on February 14. Before this day, every lover gears up to surprise their beloved with red roses, flowers, chocolates, or cards. We all know that the colour red is associated with love.
White light is made up of seven bands of colors each having different wavelengths. Upon passing through a medium, each of the colors travels at different speeds and hence has different angles of refraction leading to the splitting of the light i.e. dispersion.
When white light is passed through a prism, it splits into seven different colours namely, red, orange, yellow, green, blue, indigo and violet. If we do the reverse, that is mix the beams of light of all colour, white light is obtained.