The colors of the rainbow we see are made up of electromagnetic radiation, or a form of energy. The types of electromagnetic radiation are gamma rays, x-rays, ultraviolet rays, visible light, infrared rays, radio waves, and microwaves. Visible light is between infrared and ultraviolet rays which is where a rainbow can be seen.

The colors from the rainbow, known as Roy G Biv, are made up of several different wavelengths. Each wavelength has their own properties and can be seen in the rainbow with how long and short each color is. The color red has the longest wavelength, so it can be seen at the top of the rainbow. The colors indigo and violet have the shortest so it is seen at the bottom. Sometimes the eye can have difficulty setting the 2 colors apart and will sometimes combine them to form purple.

Any time it rains, we expect to see a rainbow, but there are certain conditions that must be met in order for this phenomenon to occur. Most importantly, the sun must be out. Without the sun, the refraction and reflection of sunlight cannot occur. In order to see a rainbow, one needs to be standing with the sun on their back and the rain droplets in front of them. Rainbows also require the sun to be less than 42 degrees above the horizon so the rays from the sun can hit the raindrops to create a rainbow.

Rainbows are a phenomenon we see when we line up in the right direction with the sun and water droplets in the air. Rainbows are the product of light refraction and reflection. Refraction is the bending of light by water, air, or gases. Reflection is the return of light after being bounced off a surface.

How are rainbows created?

The first step in the creation of a rainbow is when light enters a water droplet and becomes refracted. Next, it is reflected by the back of the droplet. When the reflected light leaves the droplet, it is refracted again, but at multiple angles. With the help of dispersion, we are able to see the many colors of the rainbow. Dispersion is the spreading of white light into its full spectrum of wavelengths.

What allows us to see the colors of the rainbow?

The colors of the rainbow relate to electromagnetic radiation. Electromagnetic radiation is a form of energy that we see all around us and allows us to see the rainbow. Electromagnetic radiation has a spectrum of the different types of wavelengths that are seen as the colors.

Why are the colors of the rainbow in a certain order?

The electromagnetic spectrum includes the many different wavelengths that are each reflected at a different angle. This is why some colors of the rainbow appear to be longer than others. Red, the longest color of the rainbow, has the longest wavelength. Violet has the shortest wavelength, so it appears at the bottom of the rainbow.