Question

Which of the following phenomena cannot be explained by the wave theory of light?

• A. Reflection of light
• B. Diffraction of light
• C. Refraction of light
• D. Compton effect

Hint:

The Compton effect provides strong evidence for the particle nature of light, as it demonstrates energy and momentum transfer between photons and electrons.

Answer 1

The Correct Option is D

The wave theory of light adequately accounts for phenomena including:

• Reflection: The bending of wavefronts at an interface.
• Refraction: The alteration in speed and trajectory of light when transitioning between media.
• Diffraction: The dispersion of waves upon encountering obstructions.

Conversely, the Compton effect, which describes photon scattering by electrons, necessitates the particle nature of light (photons) and falls outside the explanatory scope of wave theory. This phenomenon is instead elucidated by quantum mechanics.