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InterviewSolution
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Q.10. Why does the colour of the oil film on thesurface of water continuously changes? |
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Answer» When petrol is dropped on the road during a rainy day, a thin layer ofoilwill appearon thewater surface. Both the top and bottom surfaces of thisoil filmcan reflect light.The wavelength corresponding to the constructive interference also differs and this causes the reflected light to have variouscolours. |
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