CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 97 - 99 of 463

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Question number: 97

» Classical Mechanics » Periodic Motion » Small Oscillations

Appeared in Year: 2012

MCQ▾

Question

The bob of a simple pendulum, which undergoes small oscillations, is immersed in water. Which of the following figures best represents the phase space diagram for the pendulum? (June)

Choices

Choice (4) Response

a.

 The phase space diagram: Choice A

the Phase Space Diagram: Choice A

In figure a phase space diagram for a pendulum which is immersed in water is shown.

b.

The phase space diagram: Choice B

The Phase Space Diagram: Choice B

In figure a phase space diagram for a pendulum which is immersed in water is shown.

c.

The phase space diagram: Choice C

The Phase Space Diagram: Choice C

In figure a phase space diagram for a pendulum which is immersed in water is shown.

d.

The phase space diagram: Choice D

The Phase Space Diagram: Choice D

In figure a phase space diagram for a pendulum which is immersed in water is shown.

Question number: 98

» Electromagnetic Theory » Gauge Invariance

Appeared in Year: 2013

MCQ▾

Question

Let (V, A) and (V’, A’) denote two sets of scalar and vector potentials, and a scalar function. Which of the following transformations level the electric and magnetic field (and hence Maxwell’s equations) unchanged? (December)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 99

» Thermodynamic and Statistical Physics » Free Energy

Appeared in Year: 2013

MCQ▾

Question

Consider the melting transition of ice into water at constant pressure. Which of the following thermodynamic quantities does not exhibit a discontinuous change across the phase transition? (December)

Choices

Choice (4) Response

a.

Internal energy

b.

Entropy

c.

Helmholtz free energy

d.

Gibbs free energy

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