Advertisements
Advertisements
Question
Draw the energy level diagram showing how the line spectra corresponding to Paschen series occur due to transition between energy levels.
Advertisements
Solution
For Paschen series, nf = 3 and ni = 4, 5, …
`1/lambda = R (1/3^2 -1/n_i^2 )`
Where, ni = 4, 5, …

APPEARS IN
RELATED QUESTIONS
Given the ground state energy E0 = - 13.6 eV and Bohr radius a0 = 0.53 Å. Find out how the de Broglie wavelength associated with the electron orbiting in the ground state would change when it jumps into the first excited state.
A hydrogen atom initially in the ground level absorbs a photon, which excites it to the n = 4 level. Determine the wavelength and frequency of the photon.
A 12.9 eV beam of electronic is used to bombard gaseous hydrogen at room temperature. Upto which energy level the hydrogen atoms would be excited ?
Calculate the wavelength of the first member of Paschen series and first member of Balmer series.
A 12.3 eV electron beam is used to bombard gaseous hydrogen at room temperature. Upto which energy level the hydrogen atoms would be excited?
Calculate the wavelengths of the second member of Lyman series and second member of Balmer series.
The energy levels of an atom are as shown below. Which of them will result in the transition of a photon of wavelength 275 nm?

A Carnot engine absorbs 1000 J of heat energy from a reservoir at 127°C and rejects 600 J of heat energy during each cycle. The efficiency of the engine and temperature of the sink will be:
Energy of an electron at infinity from nucleus is ______.
Radiation coming from transitions n = 2 to n = 1 of hydrogen atoms fall on He+ ions in n = 1 and n = 2 states. The possible transition of helium ions as they absorb energy from the radiation is ______.
Which of the following is true for X-rays?
The diagram shows the four energy levels of an electron in the Bohr model of the hydrogen atom. Identify the transition in which the emitted photon will have the highest energy.
