Calculate the angular positions of diffraction maxima for a given grating spacing and wavelength of light. Essential for spectroscopy and wavelength analysis.
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Distance between adjacent slits on the grating.
Wavelength of the incident light.
Diffraction order. m=0 is the central maximum.
How this calculator works
The grating equation relates the slit spacing d, diffraction angle theta, order number m, and wavelength lambda. Maxima occur where constructive interference happens.
Common questions about this calculator
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