CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 275  278 of 463
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Question number: 275
» Classical Mechanics » Generalized Coordinates
Appeared in Year: 2013
Question
The numbers of degrees of freedom of a rigid body in d space – dimension is – (June)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  6 

Question number: 276
» Electromagnetic Theory » Electrostatics: Gauss's Law and Its Applications
Appeared in Year: 2013
Question
Let four point charges be placed at the vertices of a square of side . Let another point charge be placed at the centre of the square (see the figure)
Let be the electrostatic potential at a point P at a distance from the centre of the square. Then is – (December – 2013)
Choices
Choice (4)  Response  

a. 


b. 


c.  1 

d. 


Question number: 277
» 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. 


b.  1 

c.  1 

d. 


Question number: 278
» Condensed Matter Physics » Bonding of Solids
Appeared in Year: 2014
Question
The van der Waals’ equation of state for a gas is given by, Where P, V and T represent the pressure, volume and temperature respectively, and and are constant parameters. At the critical point, where all the roots of the above cubic equation are degenerate, the volume is given by, (June – 2014)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

