Q.

A hydrogen atom in an excited state emits a photon which has the longest wavelength of the Paschen series. Further emissions from the atom cannot include the

1 Longest wavelength of the Lyman series  
2 Second longest wavelength of the Lyman series  
3 Longest wavelength of the Balmer series  
4 Second longest wavelength of the Balmer series  

Ans.

(4)

Conceptual