question_answer

Photons, with a continuous range of frequencies, are made to pass through a simple of rarefied hydrogen. The transitions, shown in Fig. indicate three of the spectral absorption lines in the continuous spectrum. (i) Identify the spectral series, of the hydrogen emission spectrum, to which each of these three lines correspond. (ii) Which of these lines corresponds to the absorption of radiation of maximum wavelength?                                   

Answer:

                (i) Line \[I\to \] Lyman series. Line \[II\to \] Balmer series and Line \[III\to \] Paschen series (ii) Line \[III\] corresponds to absorption of photon of minimum energy and hence of maximum wavelength.