The mystery of white foam from coloured Soap’s

In this article you will get to know the reason that why insipte of different colours for soaps, their foam is always white in colour.

Created On: Jun 2, 2015 11:55 IST
Modified On: Jul 8, 2015 11:51 IST

Q. The mystery of white foam from coloured Soap’s

Ans. Insipte of its different colour for soap, foam’s colour is always white. This happens because foam is made out of a millions of very small bubbles having an imperfect transparent thin layer which encloses some air inside. So the bubble from the inside is darker than that of outside of the same. As a result, the bubble acts like miniature mirrors and since the light which falls on the bubble is white light; so what we see is also white in colour.

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