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

MCQ▾

Question

A given quantity of gas is taken from the state reversibly, by two paths, directly and as shown in the figure below.

PV diagram of cycle ABC

PV Diagram of Cycle ABC

In PV diagram of ABC cycle is shown.

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

a.

b.

c.

d.

Question number: 318

» Mathematical Methods of Physics » Analytic Functions

Appeared in Year: 2012

MCQ▾

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)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 319

» Quantum Mechanics » Variational Method

Appeared in Year: 2012

MCQ▾

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.

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