Question

why the rainbow bend

Answer 1

Sunlight passing through raindrops causes rainbows via a process called refraction, which is the bending of light as it passes from one medium to another. ... In the case of a rainbow, when sunlight hits a raindrop it does not move as fast through the water as it does through the atmosphere, so it bends a little

Answer 2

Answer:

Sunlight passing through raindrops causes rainbows via a process called refraction, which is the bending of light as it passes from one medium to another. ... In the case of a rainbow, when sunlight hits a raindrop it does not move as fast through the water as it does through the atmosphere, so it bends a little.