One of the good things about the rain is that it brings out the rainbow. Nature surprises us with a beautiful optical effect that we always like to contemplate.
This page will give you the coloring pictures of the rainbow that you can print. It can be used to help children learn the colors and also know about the rainbow.
Nice Collection of Rainbow Coloring Page
A rainbow is a meteorological phenomenon and occurs as an arc of multicolored light. It is the refraction of sunlight (white light) on the raindrops that are suspended in the atmosphere.
In its most intense manifestation, the seven colors can be seen: red at the top or outside and successively orange, yellow, green, cyan (or turquoise), blue, and violet at the bottom or inside.
Rainbow Coloring Page
A rainbow is formed by the decomposition of a ray of light. That light passes through a drop of water suspended in the atmosphere.
When a ray of light crosses a surface that divides two spaces of different densities (in this case, the air in the atmosphere and the drop of water), the ray refracts its path; that is, it bends or slightly changes the angle of its trajectory.
It then reflects (bounces) off one of the faces inside the drop and, on leaving, the light ray is refracted again.
The rainbow can appear anywhere where there is moisture in the air, for example, near river splashes or sea spray, and with the sun at a particular position: less than 42º above the horizon. The observer should be located facing the water drops and with the sun behind him.
The beam of light that passes through the drop of water generates a breakdown of the white light into different wavelengths. These lengths are different from each other and give rise to the different colors of the rainbow.
This concept of the “decomposition of light” was demonstrated by Isaac Newton in the 17th century. Through an experiment with a glass prism that was pierced by a ray of sunlight. He found that white light was made up of bands of colors that could be separated and visualized individually (just like the rainbow).