Since the white light is separated inside of the water, the refracted light appears as separate colors to the human eye. When these bent light waves reach the other side of the water droplet, they reflect back out of the droplet instead of completely traversing the water. Some individuals refer to refracted light as “bent light waves.” A rainbow is formed because white light enters the water droplet, where it bends in several different directions. When light refracts, it takes a different direction. When light reflects off a water droplet, it simply bounces back in the opposite direction from where it originated. The light waves change direction as they pass through the water droplets, resulting in two processes: reflection and refraction. How Is a Rainbow Formed?Ī rainbow is formed when light (generally sunlight) passes through water droplets hanging in the atmosphere. The outer edge of the rainbow arc is red, while the inner edge is violet. Biv” stands for: red, orange, yellow, green, blue, indigo, and violet. Biv” as a mnemonic device for remembering the colors of a rainbow and their order. In fact, school children in many English-speaking countries are taught to remember the name “Roy G. Rainbows present a spectrum made up of seven colors in a specific order. In essence, a rainbow is an optical illusion. Instead, the appearance of a rainbow depends entirely upon the position of the observer in relation to the direction of light. An observer may perceive a rainbow to be located either near or far away, however, this phenomenon is not actually located at any specific spot. The colors of a rainbow are produced by the reflection and dispersion of light through water droplets present in the atmosphere. What Is a Rainbow?Ī rainbow is a multi-colored, arc-shaped phenomenon that can appear in the sky. D, 6.How Is a Rainbow Formed? A double rainbow seen in Kauai, Hawaii. Differences Between Normal Rainbows and Double RainbowsĪnswer: 1. What would be a good title for this passage?Ĭ. Why do waterfalls produce rainbow-like spectrums?Ġ5. What question is answered in the last paragraph?Ĭ. light exits many raindrops at different angles.Ġ4. Moonbows are caused by moonlight (rather than sunlight) shining through drops of water.Ī. These rainbows are called moonbows and are so rare that very few people will ever see one. In addition, rainbows sometimes appear as white arcs at night. In other words, the order of colours starts with purple on top and ends with the red on bottom. In most double rainbows, the colours of the top arc are opposite from those in the bottom arc. These colours can sometimes be seen in waterfalls and fountains as well.ĭid you know that there are double rainbows? In a double rainbow, light reflects twice inside water droplets and forms two arcs. Together, these colours are known as the spectrum. When light exits lots of different raindrops at different angles, it produces the red, orange, yellow, green, blue, indigo, and violet that you see in a rainbow. When white sunlight enters a raindrop, it exits the raindrop a different colour. Rainbows are caused when sunlight shines through drops of water in the sky at specific angles. Rainbows are often seen when the sun comes out after or during a rainstorm.
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