Long description: fringes

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A diagram showing concentric rings labeled with angles π, 2π, and 3π, representing interference fringes.

Alt text: A diagram showing concentric rings labeled with angles π, 2π, and 3π, representing interference fringes.

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  • The image displays a series of four concentric black rings, which appear to illustrate interference fringes.
  • The rings are progressively spaced and labeled with specific angles.
  • An arrow points to the outermost ring and is labeled with θ = π.
  • A second arrow points to the second ring from the center and is labeled with θ = 2π.
  • A third arrow points to the innermost visible ring structure and is labeled with θ = 3π.

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