Thermodynamic and Statistical PhysicsPlanck's Distribution Law (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 1  4 of 4
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Question number: 1
» Thermodynamic and Statistical Physics » Planck's Distribution Law
Appeared in Year: 2013
Question
The speed of the molecules of mass m of an ideal gas obeys Maxwell’s velocity distribution law at an equilibrium temperature T. Let denote the components of the velocity and the Boltzmann constant. The average value of where and are constant, is – (December)
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 2
» Thermodynamic and Statistical Physics » Planck's Distribution Law
Appeared in Year: 2014
Question
A system can have three energy levels: . The level is doubly degenerate, while the others are nondegenerate. The average energy at inverse temperature is – (June)
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 3
» Thermodynamic and Statistical Physics » Planck's Distribution Law
Question
In low density oxygen gas at low temperature, only the translational and rotational modes of the molecules are excited. The specific heat per molecule of the gas is – (December)
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 4
» Thermodynamic and Statistical Physics » Planck's Distribution Law
Appeared in Year: 2013
Question
Let be a random variable uniformly distributed in the interval and , where is a real constant. If V is to be exponentially distributed in the interval with unit standard deviation, then the value of should be – (June)
Choices
Choice (4)  Response  

a.  1  
b.  1  
c. 
 
d. 
