How does the Diffraction Calculator work?

Enter wavelength, slit width, and distance to screen Then: The calculator finds diffraction pattern parameters Then: Results show minima, maxima, and intensity distribution.

Can you give an example of how to use the Diffraction Calculator?

Example: Input λ = 500 nm, a = 0.1 mm, L = 1 m gives a result of First minimum: θ ≈ 0.286° (Single slit diffraction).

Is the Diffraction Calculator free to use?

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

How accurate is the Diffraction Calculator?

Our Diffraction Calculator uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.

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Diffraction Calculator

Single Slit Diffraction

Wavelength (m)

Slit Width (m)

Order (m)

Distance (m)

Diffraction is the bending of waves around obstacles and through openings. It demonstrates that light and other waves don't travel in perfectly straight lines.

Difficulty:advanced

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Did You Know?

Diffraction grating spectroscopy relies on controlled diffraction to separate light into component wavelengths for analysis.

References

›Diffraction Patterns

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Diffraction Calculator

Single Slit Diffraction

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Single Slit Diffraction