Physics, 13.08.2020 17:01 ineedhelpireallydo
An oil film (n = 1.48) of thickness 290 nm floating on water is illuminated with white light at normal incidence. What is the wavelength of the dominant color in the reflected light? A. Blue (470 nm) B. Green (541 nm) C. Violet (404 nm) D. Yellow (572 nm)
Answers: 1
![2t = [m + \frac{1}{2} ]* \frac{\lambda}{k}](/tpl/images/0721/4537/575c0.png)
![2 * (290*10^{-9}) = [1 + \frac{1}{2} ]* \frac{\lambda}{1.48}](/tpl/images/0721/4537/c3e2f.png)
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An oil film (n = 1.48) of thickness 290 nm floating on water is illuminated with white light at norm...
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