CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 364  368 of 463
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Question number: 364
» Thermodynamic and Statistical Physics » BoseEinstein Condensation
Appeared in Year: 2011
Question
The excitations of a three – dimensional solid are bosonic in nature with their frequency and wave – number k are related by in the large wavelength limit. If the chemical potential is zero, the behaviour of the specific heat of the system at low temperature is temperature is proportional to – (December)
Choices
Choice (4)  Response  

a. 


b. 


c.  T 

d. 


Question number: 365
» Quantum Mechanics » Motion in Central Potential » Hydrogen Atom
Appeared in Year: 2011
Question
A particle in one dimension moves under the influence of a potential , where is a real constant. For large the quantized energy level depends on as: (June)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Passage
A flux quantum (fluxoid) is approximately equal to . A type II superconductor is placed in a small magnetic field, which is then slowly increased till the field starts penetrating the superconductor. The strength of the field at this point is gauss. (June)
Question number: 366 (1 of 2 Based on Passage) Show Passage
» Condensed Matter Physics » Superconductivity » Type II Superconductors
Appeared in Year: 2016
Question
The penetrate depth of this superconductor is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 367 (2 of 2 Based on Passage) Show Passage
» Condensed Matter Physics » Superconductivity » Type II Superconductors
Appeared in Year: 2016
Question
The applied field is further increased till superconductivity is completely destroyed. The strength of the field is now . The correlation length of the superconductor is:
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Passage
Consider the matrix
(June)
Question number: 368 (1 of 1 Based on Passage) Show Passage
» Mathematical Methods of Physics » Matrices
Appeared in Year: 2011
Question
The eigenvalues of M are –
Choices
Choice (4)  Response  

a.  1, 1, 3 

b. 


c. 


d. 

