Question

why is a rainbow formed?

Answer in short.​

Answer 1

Answer:

is formed due to dispersion of sunlight through water droplets. Water droplets act as small prism through which sunlight enters it refracts and disperses and then gets reflected internally which creates a rainbow in the sky which is seen to observer's eye

Answer 2

The formation of a rainbow is described step by step below:

• Sun Rays Strikes Raindrop. ...
• Some of the sunlight is reflected. ...
• Rest of Light Gets Refracted. ...
• White Light Splits into Different Colors. ...
• Lights Get Reflected Behind the Rain Drop. ...
• More Refraction Takes Place. ...
• Color Forms With More Dispersion.