Question

What does the photoelectric effect demonstrate?

• A. The particulate nature of light
• B. The wave nature of light
• C. The diffuse reflection of light
• D. The total internal reflection of light
• E. The polarization of light

Answer 1

The correct option is A The particulate nature of light

Interference , diffraction and polarization are the basic properties of a wave , as light shows all the three effects , therefore light can be considered as a wave .

But Photoelectric effect can be explained only when we consider light as made by small energy packets (particles) called photon , it means photoelectric effect shows the particle nature of light.