Wave-particle duality (AQA A-Level Physics): Flashcards

Light waves with constant phase difference

Coherent point source

Constructive interference (waves in phase)

Whole number of wavelengths ($n\lambda$)

Destructive interference (waves out of phase)

Half-integer multiple of wavelengths: $(n + \frac{1}{2})\lambda$

Wave nature of light

Two bright spots (not interference pattern)

Each wavefront point is source of secondary wavelets

Slower in water than air