Diffraction Grating
Find the diffraction angles and the maximum order of a grating from its line density and the light's wavelength, free online.
About this calculator
A diffraction grating with line spacing d produces bright maxima at angles satisfying dยทsin ฮธ = mฮป. Spacing d = 1 mm รท (lines per mm). The highest observable order is the largest m with mฮป โค d.