Are the nucleons fundamental particles, or do they consist of still smaller parts? One way to find out is to probe a nucleon just as Rutherford probed an atom. What should be the kinetic energy of an electron for it to be able to probe a nucleon? Assume the diameter of a nucleon to be approximately 10–15 m.
To detect the properties of nucleons inside the nucleus the wavelength of particle which may detect nucleons that must be of size of nucleons (10−15m). So the wavelength of particle which can detect the nucleons must be equal to or less than 10−15 λ=10−15m λ=ph ∵E=hv=λhc[∵c=vλ] K.E=P.E or (electron)=10−156.6×10−34×3×108 K.E=1.6×10−196.6×3×10−34+8+15eV=899×10−34+8+15=12.4×10−34+42=1.24×10+8 K.E=1.24×109eV So the KE of particle which may detect nucleon inside the nucleus must be of 1.24×109eV per particle
