Question

Question #628c5

Answer 1

I think you mean the particle model of light...photons?!

Explanation:

You have the Photoelectric Effect and the Compton Effect.

In the Photoelectric Effect photoelectrons emitted by the surface of a metal have kinetic energy dependent upon the FREQUENCY `f` of the incoming photons suggesting the photons have/are "packets" of energy of value: `E=hf`.

In the Compton Effect particles "recoils" after being "stricken" by light as in a collision where momentum is conserved suggesting that light carries momentum as....a particle!