Predict proton spin energy levels in the external magnetic field of B = 10 [T] for the 12C 'H2 group in a molecule in which both protons in the 12C 'H2 group are fully deshielded. Compute the frequency of electromagnetic wave needed to induce the pro- ton spin-flip transition assuming no interaction between proton spins. Then discuss how would the frequency of the wave inducing proton spin-flip transition change if the interaction between proton spins within the 12C 'H2 group is included.