I WONDER - How Do Rainbows Form?

The video tutorial explains how rainbows are formed when sunlight passes through raindrops, causing light to bend and reveal its colors, a process known as refraction. It also covers the phenomenon of double rainbows, which occur when light reflects twice within raindrops, resulting in a second, fainter rainbow.

Describe how double rainbows are formed.

What makes a second rainbow fainter than the first?