English

State Bohr Postulate of Hydrogen Atom that Gives the Relationship for the Frequency of Emitted Photon in a Transition.

Advertisements
Advertisements

Question

State Bohr postulate of hydrogen atom that gives the relationship for the frequency of emitted photon in a transition.

Advertisements

Solution

According to Bohr's postulate: electron might make a transition from one of its specified non-radiating orbits to another of lower energy. When it does so, a photon is emitted having energy equal to the energy difference between the initial and final state.
hν = E − Ef

shaalaa.com
  Is there an error in this question or solution?
2015-2016 (March) Foreign Set 2

RELATED QUESTIONS

Using Bohr's postulates of the atomic model, derive the expression for radius of nth electron orbit. Hence obtain the expression for Bohr's radius.


What is the energy in joules, required to shift the electron of the hydrogen atom from the first Bohr orbit to the fifth Bohr orbit and what is the wavelength of the light emitted when the electron returns to the ground state? The ground state electron energy is –2.18 × 10–11 ergs.


Using Bohr's postulates, derive the expression for the total energy of the electron in the stationary states of the hydrogen atom ?


Radiation coming from transition n = 2 to n = 1 of hydrogen atoms falls on helium ions in n = 1 and n = 2 states. What are the possible transitions of helium ions as they absorbs energy from the radiation?


A beam of monochromatic light of wavelength λ ejects photoelectrons from a cesium surface (Φ = 1.9 eV). These photoelectrons are made to collide with hydrogen atoms in ground state. Find the maximum value of λ for which (a) hydrogen atoms may be ionized, (b) hydrogen atoms may get excited from the ground state to the first excited state and (c) the excited hydrogen atoms may emit visible light.


Calculate the de-Broglie wavelength associated with the electron revolving in the first excited state of the hydrogen atom. The ground state energy of the hydrogen atom is −13.6 eV.


The number of times larger the spacing between the energy levels with n = 3 and n = 8 spacing between the energy level with n = 8 and n = 9 for the hydrogen atom is ______.


Write the ionisation energy value for the hydrogen atom.


The radius of the nth orbit in the Bohr model of hydrogen is proportional to ______.


The energy of an electron in the nth orbit of the hydrogen atom is En = -13.6/n2eV. The negative sign of energy indicates that ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×