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What is the minimum (non-zero) thickness ttt of the film that produces a strong reflection for green light with a wavelength of 500 nmnm

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whitneytr12

Answer:

200 nm.

Explanation:

The minimum thickness can be found using the following equation:

[tex] 2t = \frac{m\lambda}{n} [/tex]

Where:

t: is the thickness =?

m: is the order of interference = 1 (since it is minimum)

n: is the refractive index = 1.25

λ: is the wavelength = 500 nm

[tex] t = \frac{m\lambda}{2n} = \frac{500 nm}{2*1.25} = 200 nm [/tex]

Therefore, the minimum thickness is 200 nm.

I hope it helps you!

ajeigbeibraheem

The minimum non-zero thickness t of the film that produces the strong reflection is 200 nm.

The minimum non-zero thickness of a wavelength can be estimated by using the formula:

[tex]\mathbf{2t = \dfrac{m \lambda }{n}}[/tex]

here;

  • thickness (t) = ???
  • the order of interference m (minimum) = 1
  • the wavelength λ = 500 nm
  • the refractive index (n) = 1.25

∴

[tex]\mathbf{t = \dfrac{1 \times 500\ nm}{2\times 1.25}}[/tex]

t = 200 nm

Learn more about wavelength here:

https://brainly.com/question/12924624?referrer=searchResults

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