Quantum Mechanics (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 32  35 of 80
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Question number: 32
» Quantum Mechanics » SpinStatistics Connection
Appeared in Year: 2014
Question
A collection N of non – interacting spins , is kept in an external magnetic field B at a temperature T. The Hamiltonian of the system is . What should be the minimum value of for which the mean value? (December)
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Question number: 33
» Quantum Mechanics » Variational Method
Appeared in Year: 2011
Question
If the perturbation, where is a constant; is added to the infinite square well potential
The first order correction to ground state energy is:  (June)
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Question number: 34
» Quantum Mechanics » WKB Approximation
Appeared in Year: 2014
Question
Consider a particle of mass m in the potential . The energy eigenvalues, in the WKB approximation, are – (December)
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Question number: 35
» Quantum Mechanics » SpinStatistics Connection
Appeared in Year: 2011
Question
The Hamiltonian of an electron in a constant magnetic field is given by where is a positive constant and denotes the Pauli matrices. Let and be the unit matrix. Then the operator simplifies to – (June)
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