Rainbow

When the rain has subsided and the sun comes up, then comes a curved light with color, this phenomenon is called a rainbow or a cloak, do we know what a rainbow is? Rainbow or Rainbow is an optical and meteorological phenomenon in the form of colorful light parallel to each other in the sky or other media. In the sky, the rainbow appears as a light arc with its tip leading to the horizon during a light rain. Rainbow can also be seen around the falling waterfall.

While experts say a rainbow occurs when,

The rainbow is just a large circular color spectrum arc that occurs due to the refraction of sunlight by droplets. When sunlight passes through water droplets, it refracts like when it pierces the glass prism and out into the rainbow color spectrum. So in water droplets, it has a different color successively from one side to the other side of the water droplets.

From the above opinion it can be concluded that, the rainbow is a polychromatic light "consisting of many colors". The white color of sunlight is actually a combination of different lights with different wavelengths. The human eye is able to understand at least seven colors contained in the sun, which will see the rainbow, then it looks red, orange, yellow, green, blue, indigo, and purple, and other colors are not visible.