GATE (Graduate Aptitude Test in Engineering) Physics: Questions 36  39 of 659
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Question number: 36
» Thermodynamics and Statistical Physics » Calculation of Thermodynemic Quantities
Appeared in Year: 2016
Write in Short
N atoms of an ideal gas are enclosed in a container of volume . The volume of the container is changed to , while keeping the total energy constant. The change in the entropy of the gas, in units of , is , where is the Boltzmann constant.
Question number: 37
» Nuclear and Particle Physics » Nuclear Shell Model
Appeared in Year: 2015
Question
In the nuclear shell model, the potential is modeled as, . The correct spin – parity and isospin assignments for the ground state of ^{13}C is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 38
» Classical Mechanics » Mechanics of System of Particles
Appeared in Year: 2015
Write in Short
A particle of mass falls freely in the earth’s gravitational field with an initial
velocity . If air exerts a friction force of form, , then for , the velocity at time is ________ (up to two decimal places). (Use and )
Question number: 39
» Quantum Mechanics » TimeIndependent Perturbation Theory
Appeared in Year: 2014
Question
A particle is confined to a one dimensional potential box with the potential
If the particle is subjected to a perturbation, within the box, , where is a small constant, the first order correction to the ground state energy is –
Choices
Choice (4)  Response  

a.  0 

b. 


c. 


d. 

