the seven colours of rainbow are ROYGBIV for easy remembering:Richard Of York Gave Battle In Vain (mnemonic for colors of the rainbow). The splitting of white light into its colour components is called Dispersion.
The main colour are Red,Orange,Yellow,Green,Blue,Indigo,Violet.Rainbow is usually seen after Rain and its shape is like a Bow,thats why it is called Rainbow.The Rainbow Colours are very popular among children as well as big children be it decoration of room,be it a skirt.It always has been used in fashion designing.
Thre are many types of Rainbow,but i do not want to get into the details.But the Only common thing is that there are only seven colours in any Rainbow and in many fairy tales,it has been given the magical powers in which it can save the princess from the devil.
