Which phenomena shows the particle nature of light ?

Options

A. Diffraction
B. Interference
C. Photoelectric effect
D. Polarisation

Answer

3

Explanation

The phenomena such as interference, diffraction, and polarization can only be explained when light is treated as a wave whereas photoelectric effect, line spectra, and the production and scattering of x rays demonstrate the particle nature of light. The photoelectric effect supports a particle theory of light in that it behaves like an elastic collision (one that conserves mechanical energy) between two particles, the photon of light and the electron of the metal.