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M.Sc. IInd Semester (CBCS) Examination, 2021
Physics
Paper - PT-204
Advanced Quantum Mechanics
[Maximum Marks : 60
Note :- All questions from each section carry equal marks. All questions are compulsory and answer limit are approximately 250 words. Start the answer of each section from new page. Maximum limit of pages of answer booklet are approximately 16 pages. Answer should be written by the student in his/her own handwriting mandatory. The first page of answersheet should be download by the student from university website is mandatory.
1.
Write down the Hamiltonian for z-etectrons about a nucleus of charge ze. Write down the significance of each term.
2.
Show is Born approximation, scattering amplitude is the fourier transform of the scattering potenlial.
3.
Explain the difference in between symmetric and anti symmetric wave function. What do you mean by identical particles.
4.
Discuss the effects of small perterbation on a quantum mechanical system. Hence derive the expression for Einstein 'A' coefficient.
5.
On the basis of Dirac theory of electron obtain relation in between spin and magnetic moment of electron.