Rainbow

A rainbow is a kaleidoscopic curve made by light striking water drops. The most recognizable sort rainbow, remembering this one for southern Chile, is delivered when daylight strikes raindrops before a watcher at an exact point. The tones on an essential rainbow are consistently arranged by their frequency, from longest to briefest: red, orange, yellow, green, blue, and violet.

The most recognizable sort rainbow is delivered when daylight strikes raindrops before a watcher at an exact point (42 degrees). Rainbows can likewise be seen around mist, ocean splash, or cascades. 

A rainbow is an optical deception—it doesn't really exist in a particular spot in the sky. The presence of a rainbow relies upon where you're standing and where the sun (or other wellspring of light) is sparkling.

Two fold rainbows are framed when daylight is reflected twice inside a raindrop with the violet light that arrives at the onlooker's eye coming from the higher raindrops and the red light from lower raindrops.