Spectral Line Calculation of H-atom and Question Discussion

Discussion on H.C. Verma Question 1-10

Number of spectral lines in hydrogen atom is

A collection of H-atoms in 9th excited state returns to ground state . Calculate ratio of total number of spectral lines emitted without emitting any line in Brackett series to number of Brackett series lines .

The first three spectral lines of H-atom in the Balmer series are given lamda _(1), lamda _(2), lamda _(3) considering the Bohr atomic model, the wave lengths of first and third spectral line ((lamda_(1))/( lamda _(3))) are related by a factor of approximately 'x' xx10^(-1) The value of x, to the nearest integer, is "__________"

A spectral line in the spectrum of H atom has a wavelength of 15222.22 cm^(-1) .The transition responsible for this rediation is (Rydherg constant R = 10977 cm^(-1)

The figure indicates the enegry level diagram of an atom and the origin of six spectral lines in emission (e.g. line no. 5 series from the transition from level B to A ). The following spectral lines will also occur in the absorption spectrum