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Visible light is incident on an oil film (n= 1.51) coating a puddle of water. ​For what minimum oil thickness will you see no reflection for the blue light (460 nm )?​

Respuesta :

Answer:

152.31 nm

Explanation:

[tex]n[/tex] = index of refraction of oil coating = 1.51

[tex]\lambda[/tex] = wavelength of blue light = 460 nm

[tex]m[/tex] = order = 1

[tex]t[/tex] = minimum thickness of the coating

Using the equation

[tex]2 n t = m\lambda[/tex]

Inserting the values

[tex]2 (1.51) t = (1) (460)[/tex]

[tex]t = 152.31[/tex] nm

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