CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 338  340 of 463
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 463 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 300.00 or
Question number: 338
» Thermodynamic and Statistical Physics » Free Energy
Appeared in Year: 2011
Question
Assume that the free energy of a magnetic system has an expansion in the order parameter M of the form , with . As the temperature is lowered below , the system undergoes a phase transition. The behaviour of the order parameter just below the transition, where is very small, is best described by – (December)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 339
» Atomic & Molecular Physics » LS & JJ Couplings
Appeared in Year: 2012
Question
The spectral line corresponding to an atomic transition from states splits in a magnetic field of 1 KG into three components separated by . If the zero field spectral line corresponding to , what is the g – factor corresponding to the state? (You may use ) (June)
Choices
Choice (4)  Response  

a. 


b. 


c.  2 

d.  1 

Question number: 340
» Atomic & Molecular Physics » LS & JJ Couplings
Appeared in Year: 2011
Question
If the hyperfine interaction in an atom is given by , where and denote the electron and proton spins, respectively, the splitting between the and state is – (December)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

