Question

Q.30 In deep inelastic scattering electrons are scattered off protons to determine if a proton has
any internal structure. The energy of the electron for this must be at least​

Answer 1

Answer:

the energy range up to 0.06 GeV, the cross section for elastic scattering of electrons from carbon nuclei drops dramatically since it becomes more and more improbable for the carbon nucleus to remain intact under such energetic bombardment. The cross section for inelastic scattering in which the carbon nucleus breaks apart remains surprisingly near a constant value. This suggests that the electron is scattering off something within the nucleus which is structureless in this energy range. That scattering center is known to be a proton, and this scattering evidence for the existence of the proton forms a model for looking for even deeper structure.