theory of light .....?

Question

among corpuscular and quantum theory which one is for particle nature of light?how is there any relation between two ?does electromegnetic theory combines both....please explain if you know

Answer 1

Corpuscular was sort of the early version of quantum theory; both emphasize the particulate aspects of light and are apt for considering the interaction of light with matter. Electromagnetic theory is more concerned with the propagation aspects. These are combined in a thing called quantum electrodynamics, where the basic approach is to integrate the results of propagation over all possible paths.

Answer 2

They are pretty much the same concept...that light is a bundle of energy, and the combined effect of all those bundles is that light also behaves like a wave. The corpuscles, bundles, quanta of light (they are all bits of light energy) are like the molecules of water in the ripples on the surface of a pond.

Wave interference, like in the two-slit experiment, is caused by groups of photons that interfer with or join with other groups of photons. This is like those same waves on a pond interfering with or joining other waves; but all the waves are really made of bits or quanta of water called molecules.