An effective two-body density operator for point nucleon system folded with the two-body short range correlations (SRC's), which take account of the strong short range repulsion in the nucleon-nucleon forces, is produced and used to derive an explicit form for ground state two-body charge density distributions (2BCDD's) applicable for various closed and open shell nuclei with N=Z. For investigating the inelastic longitudinal form factors F(q)'s, an expression for the transition charge density is studied where the deformation in nuclear collective modes is taken into consideration besides the...