Rainbow

A rainbow is a natural meteorological phenomenon that appears as a multicolored arc in the sky. It is caused by the refraction, dispersion, and reflection of sunlight in water droplets, usually after rain. Here’s how it works:

🌦️ How a Rainbow Forms:
1. Sunlight hits raindrops in the atmosphere.
2. Refraction: The light bends as it enters the raindrop.
3. Dispersion: The light splits into its component colors (red, orange, yellow, green, blue, indigo, violet).
4. Internal Reflection: The light reflects off the inside surface of the raindrop.
5. Refraction again: The light bends again as it exits the drop and reaches your eyes.

🌈 Colors of a Rainbow (in order):
• Red
• Orange
• Yellow
• Green
• Blue
• Indigo
• Violet

A good way to remember the color order is the acronym: ROYGBIV.

🌈 Fun Facts:
• A primary rainbow has red on the outside and violet on the inside.
• A double rainbow can occur, with a second, fainter arc appearing outside the primary one, with reversed colors.
• You usually see a rainbow when the sun is behind you and rain is in front of you.