Concept:The photoelectric effect provides evidence that light behaves as discrete particles called photons.
Explanation:When light strikes a metal surface, electrons can be emitted.
This is called the photoelectric effect.
The emitted electrons have kinetic energy that depends on the frequency of the light, not on its intensity.
This behaviour cannot be explained by the wave theory of light.
It is explained by treating light as a stream of particles, each carrying energy
E=hν.
Hence, the photoelectric effect supports the particle nature of waves.
Answer:B. photoelectric effect