Thin Film/Coat Interference

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Phase Changes, Interference types, and thickness equations of films and coats during Thin Film/Coat Interference for AP Physics 2

Physics

Geometric Optics

AP Physics 2: Algebra-Based

Unit 6: Geometric and Physical Optics

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9 Terms

1
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Constructive Interference for a Film (Equation)

2t = (m + 0.5)λ

2
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Destructive Interference for a Coat (equation)

2t = (m + 0.5)λ

3
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Constructive Interference for a Coat (equation)

2t = mλ

4
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Destructive Interference for a Film (equation)

2t = mλ

5
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Indices of Refraction for a Film

n1 < n2 > n3

6
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Indices of Refraction for a Coat

n1 < n2 < n3

7
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Phase Change of Reflected Ray

180 degrees

8
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Phase Change of Refracted Ray (Coat)

180 degrees

9
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Phase Change of Refracted Ray (Film)

0 degrees