# When is Hα Line in the Emission Spectrum of Hydrogen Atom Obtained? Calculate the Frequency of the Photon Emitted During this Transition. - Physics

Numerical

When is Hα line in the emission spectrum of hydrogen atom obtained? Calculate the frequency of the photon emitted during this transition.

#### Solution

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
Is there an error in this question or solution?

Share