CSIR Physical Sciences: Questions 193  196 of 401
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Question number: 193
» 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)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 194
» 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)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 195
» Mathematical Methods of Physics » Binomial, Poisson and Normal Distributions
Appeared in Year: 2011
Question
Consider a Maxwellian distribution of the velocity of the molecules of an ideal gas. Let and denote the most probable velocity and the root mean square velocity, respectively. The magnitude of radio is: (December)
Choices
Choice (4)  Response  

a. 


b.  1 

c. 


d. 


Question number: 196
» 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)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

