Hydrogen atom absorbs radiations of wavelength `lambda_0` and consequently emit radiations of 6 different wavelengths, of which two wavelengths are longer than `lambda_0`. Chosses the correct alternative(s).
A. The final excited state of atoms is n=4
B. The fina state of the atoms is n=4
C. The initial state of the atoms is n=3
D. There are three transitions belonging to Lyman serires
