The colors seen in a rainbow are light refracted in water droplets, such as rain or a fine mist, reflected back and then refracted again. Refraction of light is the bending of a light wave where it enters a medium, such as water or glass, where the speed at which the light can travel is different. When light is refracted, the different colors in the spectrum are separated.Continue Reading
A rainbow is formed when there is a good amount of sunlight and rain or mist, often seen at waterfalls. To see a rainbow, the person must be facing away from the sun, looking toward the precipitation. When the light reflects within the droplet of water, there is a chance that it will reflect again, causing a double rainbow or a supernumerary rainbow. A supernumerary rainbow occurs when additional bands of color form on the inner, and rarely the outer, arc of the rainbow.
It is possible to recreate the refraction of light seen in rainbows by using a glass prism. The number of colors seen in refracted light can be as many as 100, however, due to the sheer number of variables in forming a rainbow, the number of colors visible can change greatly. The seven colors associated with rainbows-red, orange, yellow, green, blue. indigo and violet, can be traced back to Isaac Newton, which he associated with the seven notes in a musical scale.Learn more about Optics & Waves
Light makes colors fade because ultraviolet radiation is capable of breaking down the molecules of pigments and dyes. The long molecules that make up these colors are often unstable, and the energy that ultraviolet radiation strikes these molecules with is capable of breaking the weaker molecular bonds in the structure. This degrades the colors over time, and as more molecules break down, colors begin to fade.Full Answer >
Blue is a primary color, which means you cannot create it by mixing other colors. Blue does mix with other colors to create new colors, including mixing with yellow to make green and mixing with red to make violet.Full Answer >
A spectroscope relies on separating light into its component parts because of the information that can be obtained from examining the wider spectrum of colors that composes white light as it is reflected off an object. Such information can include elemental composition as well as how much of a particular element makes up the object that is being looked at.Full Answer >
White light is composed of all colors of light in the visible spectrum. A prism diffracts all the colors in white light at different angles, separating them.Full Answer >