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soap bubbles

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saraho | 14:58 Mon 04th Jul 2005 | How it Works
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why are soap bubbles coloured?
  
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I don't think that they are, it is light being split up into the visible spectrum in the same way that rainbows are formed.

You could look here, this is the correct reason -

http://www.cf.ac.uk/engin/staff/rjdt/colour/solution/c4/ q.html

Tried that link and it didn't work, the text taken from that site is - Why are soap bubbles coloured?

Soap bubbles are coloured because light is reflected from both sides of the film. The two resulting light waves interfere to produce constructive and destructive interference effects. The colours seen are a result of this process summed over all the visible wavelengths.

 

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