A transmission diffraction grating produces both first- and second-order spectra from…

PHYSICS · Subjective · AP · Physics 2: Algebra-based · Waves Sound and Physical Optics · Waves Sound and Physical Optics

Problem

A transmission diffraction grating produces both first- and second-order spectra from white light. Rank the following spectral lines from farthest to closest to the central (zero-order) maximum: first-order green (λ≈550 nm\lambda\approx550\,\text{nm}), second-order violet (λ≈400 nm\lambda\approx400\,\text{nm}), first-order red (λ≈700 nm\lambda\approx700\,\text{nm}). List them in order from largest to smallest angular displacement.

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