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Diffraction Grating Spectrum
AP Physics 2 · Unit 14 Waves & Optics
Learning Objectives
Apply d sin θ = mλ for maxima
Calculate angular positions of diffraction orders
Understand spectral resolution
Observe wavelength-dependent diffraction
Key Equation
d sin θ = mλ
d = slit spacing
m = order (0, ±1, ±2...)
λ = wavelength
Tags
diffractiongratingspectrumAP Physics 2
Wavelength λ (nm) 550
Slit spacing d (μm) 2.0
Max Order 3
Diffraction Angles