Lag1989 task number 21.38

Lag1989 task number 21.38

Find the smallest width Lₘᵢₙ of the diffraction grating, which, with a normal incidence of light, would allow resolving sodium lines with wavelengths λ₁ = 589 nm and λ₂ = 589.6 nm in the second-order spectrum. Lattice constant d = 0,01mm.

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