CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 301  305 of 463
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Question number: 301
» Thermodynamic and Statistical Physics » BoseEinstein Condensation
Appeared in Year: 2012
Question
Bose condensation occurs in liquid kept at ambient pressure at . At which temperature will Bose condensation occur in in gaseous state, the density of which is 1000 times smaller than that of liquid ?
(Assume that it is a perfect Bose gas) (June)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 302
» Nuclear and Particle Physics » Rotational Spectra
Appeared in Year: 2012
Question
The first absorption spectrum of is at while that of is at . The ratio of their moments of inertia is – (June)
Choices
Choice (4)  Response  

a.  1.286 

b.  1.851 

c.  1.046 

d.  1.038 

Question number: 303
» Classical Mechanics » Special Theory of Relativity » Relativistic Kinematics
Appeared in Year: 2012
Question
What is the proper time interval between the occurrences of two events if in one inertial frame the events are separated by and occurs apart? (June)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 304
» Nuclear and Particle Physics » C, P and T Invariance
Appeared in Year: 2012
Question
Consider the following particle: the proton , the neutron , pion and the delta resonance . When ordered arrangement is as follows –
(December)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 305
» Thermodynamic and Statistical Physics » BoseEinstein Condensation
Appeared in Year: 2012
Question
Non – interacting boson undergo Bose – Einstein Condensation (BEC) when trapped in a three – dimensional isotropic simple harmonic potential. For BEC to occur, the chemical potential must be equal to –
(December)
Choices
Choice (4)  Response  

a. 


b. 


c.  0 

d. 

