Question 15 Nt yt a nd n of L g n Asoap film (u-1.33) its on top of a plastic plate (n-137). White light strikes the film nearly perpendicularly. The smallest nonzero film thickness for which the film appears bright due to eonstructive interference is 153 nm. What color does the film apPpear? O Yellow (580 nm) O Red (650 nm) O Blue (475 nm) O Green (500 nm) P Violet (420 nm)
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