1) In case of electron-proton elastic scattering, with finite
size proton described by Rosenbluth formula: could you explain
what are the components of the formula.
Explain what are the form-factors.

2) How is described differential cross-section for inelastics
scattering e p->e X. What are the characteristic kinematical
variables. 

3) What you can say about parton distribution functions
and quark parton model.