Why Does Milk Appear in White Colour?  

Milk and curd looks white when we seen in the sunlight but they appears red in red light and blue in blue light. Have you ever wondered? Why its happens? If you don't know follow my blog page for more curious science thoughts. 

We all know that the sunlight is a mixture of seven colours. There are:  Violet, Indigo, Blue, Green, Yellow, Orange & Red. The colours of the sun light can be separated with the help of a prism. The coloured an object depends upon the colour that reaches our eyes after reflection from the object. 

Colour of an objects depends upon the reflected light. 

 

What ever colour is reflected by the object, is the colour of the that object. The molecular structure of milk and curd is such that they do not absorb any of the colours of the sunlight but reflected all of them, Thus these substances appear white. When milk and curd are viewed in red light, they look red because red colour is reflected by them. The same argument holds good for the colours of the other objects also. 

Colors! What A Deep And Mysterious Language, The Language Of Dreams.   -Paul Gauguin.