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Old Feb 14th 2010, 05:05 PM   #1
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Join Date: Feb 2010
Location: UK
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Colours in a bubble and neon lighgt through defraction grating

1. Colours can be seen moving around in a blown soap bubble. Explain how these are formed and why they move.

2. Viewing a neon advertising sign through a diffraction grating one sees specific lines of different colours. Give an explanation of how these lines are formed.

c= 3x10^8 ms

Please explain to me how to answer these. I don't know where to start
Thanks!

Last edited by George321; Feb 14th 2010 at 05:39 PM.
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bubble, colours, defraction, diffraction, grating, lighgt, light, neon, neon light



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