[" In hydrogen an electron transition takes place from "],[n=2" level to "n=3" level.The wavelength of the line in "],[" the hydrogen spectrum would be "]

In hydrogen atom, electron makes transition from n = 4 to n = 1 level. Recoil momentum of the H atom will be

In a hydrogen atom , an electron makes a transition from energy level of -1.51 eV to ground level . Calculate the wavelength of the spectral line emitted and identify the series of hydrogen spectrum to which this wavelength belongs.

In a hydrogen atom, an electron undergoes transition from an energy level with n= 4 to an energy level with n= 2. Calculate the wavelength of the spectral line thus obtained. In which region of electromagnetic spectrum this line would be observed and what would be its colour?

Transition of electron from n=3 to n=1 level results in

What is the wavelength of light emitted when the electron in a hydrogen atom undergoes transition from the energy level with n = 4 to the energy level with n = 1 ? In which region of the electromagnetic spectrum does this radiation fall ?

Which one of the following will result in an electron transition from the n = 4 level to the n= 7 level in a hydrogen atom?