What is the composition of white light?

White light is a mix of all the hues in the visible spectrum. It comes in every colour of the rainbow. Secondary colours, such as yellow, cyan, and magenta, are created by combining basic light colours such as red, blue, and green. The three main colours can be broken down into various combinations to create all other colours. So, when we say "white", we mean "all". It contains every possible color at once. We can create white light by mixing red, blue, and green lasers together therefore it is known as composition of white light.