Thermodynamics and Statistical Physics (GATE (Graduate Aptitude Test in Engineering) Physics): Questions 13  16 of 82
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Question number: 13
» Thermodynamics and Statistical Physics » BoseEinstein Condensation
Appeared in Year: 2015
Question
In Bose – Einstein condensates, the particles –
Choices
Choice (4)  Response  

a.  Have overlapping wave functions 

b.  Condense in real space 

c.  Have large and positive chemical potential 

d.  Have strong inter – particle attraction 

Question number: 14
» Thermodynamics and Statistical Physics » Partition Function
Appeared in Year: 2012
Question
Consider a system whose three energy levels are given by . The energy level is two – fold degenerate and the other two are non – degenerate. The partition function of the system with is given by –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 15
» Thermodynamics and Statistical Physics » Degenerate Fermi Gas
Appeared in Year: 2012
Question
For an ideal Fermi gas in three dimensions, the electron velocity at the Fermi surface is related to electron concentration as,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 16
» Thermodynamics and Statistical Physics » Partition Function
Appeared in Year: 2012
Question
A paramagnetic system consisting of N spin – half particles, is placed in an external magnetic field. It is found that spins are aligned parallel and the remaining spins aligned antiparallel to the magnetic field. The statistic entropy of the system is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

