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Hair Thickness / Diffraction Calculator
Calculate hair diameter using laser diffraction pattern (Babinet's principle)
Instructions: Enter the laser wavelength ($\lambda$), distance from the hair to the screen ($L$), fringe/width measurement distance ($y$), and fringe order ($n$) to compute hair thickness ($d$).
Optical Parameters
Calculation Results
⚠️ For optics and physics education reference only. Wavelength, screen distance, and fringe distance must be strictly positive.