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

Short Answer Question▾

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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

MCQ▾

Question

In the nuclear shell model, the potential is modeled as, . The correct spin – parity and isospin assignments for the ground state of 13C is –

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Choice (4) Response

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b.

c.

d.

Question number: 38

» Classical Mechanics » Mechanics of System of Particles

Appeared in Year: 2015

Short Answer Question▾

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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 » Time-Independent Perturbation Theory

Appeared in Year: 2014

MCQ▾

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

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0

b.

c.

d.

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