Question

Why was corpuscular theory of light discarded?

Answer 1

Corpuscular theory predicted that if the ray of light (refraction) bends towards the normal then the speed of the light would be greater in the second medium. But the experiment of Foucault proved that, on refraction if the light bends towards the normal, then the speed of light will be lesser in second medium. Thus the corpuscular theory did not satisfactorily explained refraction.