Demonstrate that the frequency `omega` of a photon emerging when an electron jumps between neighbouring circular orbits of a hydeogen-like ion satisfies the inequality `omega_(n)gt omegagt omega_(n+1)`, where `omega_(n)` and `omega_(n+1)` are the frequencies of revolution of that electron around the nucleus along the circular orbits. Make sure that as `n rarr oo` the frequency of the proton `omega rarr omega_(n)`