CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 374 - 377 of 463

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Passage

A beam of pions is incident on a proton target, giving rise to the process

(June)

Question number: 374 (1 of 2 Based on Passage) Show Passage

» Nuclear and Particle Physics » Elementary Particles and Quantum Numbers » Isospin

Appeared in Year: 2011

MCQ▾

Question

Assuming that the decay process through strong interactions, the total Isospin and its third component for the decay products, are –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 375 (2 of 2 Based on Passage) Show Passage

» Nuclear and Particle Physics » Elementary Particles and Quantum Numbers » Isospin

Appeared in Year: 2011

MCQ▾

Question

Using Isospin symmetry, the cross – section for the above process can be related to that of the process –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 376

» Classical Mechanics » Special Theory of Relativity » Relativistic Kinematics

Appeared in Year: 2011

MCQ▾

Question

A planet of mass m moves in the inverse square central force field of the Sun of mass M. If the semi – major and semi – minor axes of the orbit are and , respectively, the total energy of the planet is: (December)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 377

» Electromagnetic Theory » Scalar and Vector Potentials

Appeared in Year: 2011

MCQ▾

Question

The Lagrangian of a particle of charge and mass m in applied electric and magnetic field is given by , where and are the vector and scalar potentials corresponding to the magnetic and electric fields, respectively. Which of the following statement is correct? (June)

Choices

Choice (4) Response

a.

Under a gauge transformation of the potentials, L changes by the total time derivative of a function of and .

b.

The canonically conjugate momentum of the particle is given by

c.

L remains unchanged under a gauge transformation of the potentials

d.

The Hamiltonian of the particle is given by

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