Which of the following phenomena does not explain by wave nature of light. A. reflection B. diffraction C. photoelectric effect D. interference E. polarization. Choose the most appropriate answer from the options given below:

We need to identify which phenomenon cannot be explained by the wave nature of light.

A. Reflection: Explained by wave theory (Huygens' principle). Each point on a wavefront acts as a source of secondary wavelets, and the reflected wavefront follows the law of reflection.

B. Diffraction: Explained by wave theory. Diffraction is the bending of waves around obstacles, a characteristic wave phenomenon described by Huygens-Fresnel principle.

C. Photoelectric effect: This cannot be explained by the wave nature of light. The wave theory predicts that any frequency of light should eject electrons if given enough time and intensity, but experimentally, there is a threshold frequency below which no electrons are emitted regardless of intensity. Einstein explained this using the particle (photon) nature of light: each photon carries energy $$h\nu$$, and only photons with energy greater than the work function can eject electrons.

D. Interference: Explained by wave theory. Constructive and destructive interference patterns arise from the superposition of waves.

E. Polarization: Explained by wave theory. Polarization demonstrates that light is a transverse wave.

The correct answer is Option (3): C only.