The classical energy of a plane rotator is given by e=l^2 / 2i where l is the angular momentum and i is the moment ofinertia. apply the bohr quantization rules to obtain the energy levelsof the rotator. if the bohr frequency condition is assumed for theradiation in transitions from states labeled by n1 to stateslabeled by n2, show that (a) the correspondence principle holds, and (b) that it implies that only transition (delta)n =(+and-)1should occur.