How do you conclude a rainbow?

A rainbow is concluded by understanding that it is formed by the refraction, dispersion, and reflection of sunlight in water droplets. This interaction creates a spectrum of light that appears as a circular arc of colors. To observe a complete rainbow, one typically needs to be positioned with their back to the sun and facing the water droplets, such as rain or mist, which are acting as the prism. Ultimately, the phenomenon is a beautiful display of nature's optics.