RAINBOW🌈

It is a natural optical phenomenon caused by the dispersion of sunlight by tiny water droplets in the Earth's atmosphere. This result in a spectrum of light appearing in the sky. A rainbow is always formed in a direction opposite to that of the sun. When sunlight is incident on the water droplets, it gets refracted while entering a droplet, then it is internally reflected inside on the back of the droplet and refracted again when leaving it. Due to the dispersion of light and total internal reflection, different colors reaches the observer's eyes at different angles forming the spectrum.