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  4. Diffraction Grating Calculator
Physics CalculatorOptics

Diffraction Grating Calculator

Calculate the angular positions of diffraction maxima for a given grating spacing and wavelength of light. Essential for spectroscopy and wavelength analysis.

Updated 2025-01-153 min read

Calculator

Enter your values below

Distance between adjacent slits on the grating.

Wavelength of the incident light.

Diffraction order. m=0 is the central maximum.

Formula & Methodology

How this calculator works

d * sin(theta) = m * lambda

The grating equation relates the slit spacing d, diffraction angle theta, order number m, and wavelength lambda. Maxima occur where constructive interference happens.

Frequently Asked Questions

Common questions about this calculator

Disclaimer

These calculators are for educational and informational purposes only. While we strive for accuracy, results should be verified for critical applications. Always consult authoritative sources for engineering or scientific work.

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