CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 317  319 of 463
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Question number: 317
» Thermodynamic and Statistical Physics » Laws of Thermodynamics
Appeared in Year: 2012
Question
A given quantity of gas is taken from the state reversibly, by two paths, directly and as shown in the figure below.
During the process the work done by the gas is 100 J and the heat absorbed is . If during the process the work done by the gas is , the heat absorbed is – (December)
Choices
Choice (4)  Response  

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d. 


Question number: 318
» Mathematical Methods of Physics » Analytic Functions
Appeared in Year: 2012
Question
A bag contains many balls, each with a number painted on it. There are exactly balls which have the number (namely one ball with 1, two balls with 2, and so on until N balls with N on them). An experiment consists of choosing a ball at random, nothing the number on it and returning it to the bag. If the experiment is repeated a large number of times, the average value of the number will tend to – (June)
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Choice (4)  Response  

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d. 


Question number: 319
» Quantum Mechanics » Variational Method
Appeared in Year: 2012
Question
A variational calculation is done with the normalized trial wavefunction for the one dimensional potential well , the ground state energy is estimated to be, (June)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

