When is Hα line in the emission spectrum of hydrogen atom obtained? Calculate the frequency of the photon emitted during this transition.
Energy of an electron in the nth orbit hydrogen atom is given by ,
`E_n = -13.6//n^2eV`
line in the emission spectrum of hydrogen atom is obtained in transition.
Frequency of photon obtained in the transition is given by:
`DeltaE = hf = -13.6 (1/9 - 1/4) eV`
`DeltaE = (13.6xx5)/36 xx 1.6 xx 10^(-19) J`
`f = (DeltaE)/h = (13.6xx5xx1.6xx10^(-19))/(36xx6.6xx10^(-34)`
`f = 4.558 xx 10^(14) Hz`
Concept: Hydrogen Spectrum
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