Rainbows are beautiful natural displays of light and color caused by the refraction, reflection, and dispersion of sunlight in water droplets. When sunlight enters a raindrop, it bends (refracts), reflects off the inside surface of the droplet, and then bends again as it exits. This process separates the light into different colors, creating a circular arc of red, orange, yellow, green, blue, indigo, and violet.
Rainbows usually appear after rain showers when the sun shines while there are still water droplets in the air. They have fascinated people for centuries and are often seen as symbols of hope and beauty. Understanding how rainbows form helps us appreciate the amazing ways light interacts with our environment. Shutdown123