On 22nd february at around 6:00 pm to 6:15pm two rainbows were observed in Nagpur City! It is a rare phenomenon but really amazing to watch.
I was googling around to find out how this happen, here’s the answer.
First of all, a Rainbow is formed due to the waterdroplets of the rains. Waterdroplets are working just like the Prism. Clouds can also work like Prism as they are also made up of waterdrolets. If sunlight is passing through a thin stratum of clouds and a stratum of rains simultaneously then you can get 2 rainbows at a time.
These 2 rainbows are opposite to each other means the lower rainbow having the red color in the top (color sequence of rainbow will be …..ROYGBIV …above downwards ) and the upper rainbow will have the red color in the bottom (VIBGYOR ) because the Prism formed by the stratum of rains and clouds are opposite to each other .
If you can produce spectrum with the help of prism then you can invert the colors of the prism just by rotating the prism upside down( when the Apex of prism is upwards and the base of the prism is downwards ,at that time you will get reverse spectrum i.e. sequence of spectral colors will be ….VIBGYOR .. above downwards). In other words the apex of the prism formed by the rain stratum is facing up while the apex of the prism formed by the stratum of cloud is facing down thus we are getting 2 rainbows of different ( Reverse ) sequence
As the clouds are thick( less transparent ) and situated above the stratum of rains thus the upper rainbow formed due to clouds is faint as compared to the lower rainbow formed due to the more transparent stratum of rains.
