sommerfeld theory मीनिंग इन हिंदी

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This "'Bohr Sommerfeld theory "'is a significant step in the development of quantum mechanics.
Already in 1915, however, Arnold Sommerfeld was able to derive the Fine structure of Bohr Sommerfeld theory ).
It is often alleged, that the Schr�dinger equation is superior to the Bohr-Sommerfeld theory in describing hydrogen atom.
From 1927 to 1928 Brattain worked for the National Bureau of Standards in Washington, D . C ., where he helped to develop Sommerfeld theory.
It was the complete failure of the Bohr-Sommerfeld theory to explain many-electron systems ( such as helium atom or hydrogen molecule ) which demonstrated its inadequacy in describing quantum phenomena.
After substituting the values of ? p ( Pauli susceptibility ) and C elec ( electronic contribution to specific heat ), obtained using Sommerfeld theory, the value obtained for R w in the case of a free electron gas is 1.
This is however not the case, as the most results of both approaches coincide or are very close ( a remarkable exception is the problem of hydrogen atom in crossed electric and magnetic fields, which cannot be solved in the framework of the Bohr-Sommerfeld theory self-consistently ), and their main shortcomings result from the absence of the electron spin in both theories.