Physics - Waves - Behavior - Diffraction - Understanding Diffraction

A 4-step lesson. Step 1: 'Diffraction is the spreading of waves when they pass through a gap or around an obstacle. Every point on a wavefront acts as a source of secondary wavelets (Huygens' principle).' Step 2: 'Amount of diffraction depends on the ratio λ/d (wavelength/gap size). Maximum diffract