PHYSICS · Single correct · A Level · Physics · Particles and radiation · Particles and radiation
Problem
Consider the following three phenomena:
(i) Electrons produce a diffraction pattern when passing through a thin crystal.
(ii) Ultraviolet light ejects electrons from a sodium surface.
(iii) Visible light forms interference fringes in a double-slit apparatus.
For each phenomenon, determine whether the wave model, the particle model, or both models of matter/light are primarily required for its explanation. Which option lists the correct sequence for (i), (ii), and (iii) respectively?
(a) Wave model \; ; \; Particle model \; ; \; Both models
(b) Both models \; ; \; Particle model \; ; \; Wave model
(c) Wave model \; ; \; Particle model \; ; \; Wave model
(d) Particle model \; ; \; Wave model \; ; \; Wave model