Statement I: In alpha particle scattering number of alpha particle undergoing head on collision is s

Question

Statement I: In alpha particle scattering number of alpha particle undergoing head on collision is small. \ Statement II : Small fraction of the number of incident particles rebound back,

Professor PC Thomas Classes · Answer

(a) : The number of alpha particles undergoing head on collision is small. This in turn, implies that the mass of the atom is concentrated in a small volume.