Wave OpticsMedium
Question
On a rainy day, if there is an oil on tar roan coloured rings are seen around this drop. this is becaise of :
Options
A.total internal reflection of light
B.polarisation
C.different pattern
D.Interference pattern produced due to thin flims
Solution
When a thin layer of oil floats on the water level, interference taken place between ray of the light reflected from upper interface and from lower inter. Due to interference coloured fringes are formed in oil film.
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