Microwave ovens are not just being put to use in the kitchen—they are also useful in the chemical laboratory, particularly in drying samples for chemical analysis. Atypical microwave oven uses microwave radiation with a wavelength of 12.2 cm. Are there any electronic transitions between consecutive levels in the hydrogen atom that could conceivably produce microwave radiation of wavelength 12.2 cm? Estimate the principal quantum levels between which the transition occurs.