Suppose the thickness of an oil film on water is just the right thickness for canceling red light. What color will your eye see? Explain using 3 – 4 complete sentences.
When an oil film on water is at the perfect thickness to cancel out red light, we can expect to see colors other than red. This phenomenon, known as thin-film interference, occurs as light waves reflect and interfere with each other. The colors we observe depend on the film's thickness, with different thicknesses corresponding to different colors. In this case, since the red light is being canceled out, our eye will perceive a color that is complementary to red, which is cyan or bluish-green.
