A parallel beam of sodium light strikes a film of oil floating on water. When viewed at an angle 30° from the normal, eighth dark band is seen. Detemine the thickness of the film. Refractive index of oil is 1.46 and = 5890 Ả. %3D

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A parallel beam of sodium light strikes a film of oil floating on water. When
viewed at an angle 30° from the normal, eighth dark band is seen. Detemine
the thickness of the film. Refractive index of oil is 1.46 and 2 = 5890 Ả.
%3D
Transcribed Image Text:A parallel beam of sodium light strikes a film of oil floating on water. When viewed at an angle 30° from the normal, eighth dark band is seen. Detemine the thickness of the film. Refractive index of oil is 1.46 and 2 = 5890 Ả. %3D
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