CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 349 - 351 of 401

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 401 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 300.00 or

Question number: 349

» Atomic & Molecular Physics » Born-Oppenheimer Approximation

Appeared in Year: 2011

MCQ▾

Question

The difference in the Coulomb energy between the mirror nuclei Equation and Equation is Equation . Assuming that the nuclei have a spherically symmetric charge distribution and that Equation is approximately Equation the radius of the Equation nucleus is – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 350

» Quantum Mechanics » Timeindependent Perturbation Theory and Applications

Appeared in Year: 2012

MCQ▾

Question

Consider an electron in a box of length L with periodic boundary condition Equation . If the electron is in the Equation with energy Equation , what is the correction to its energy, to second order of perturbation theory, when it is subjected to weak periodic potential Equation , where Equation is an integral multiple of the Equation ? (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 351

» Thermodynamic and Statistical Physics » Brownian Motion

Appeared in Year: 2011

MCQ▾

Question

A gas of N non- interacting particles is in thermal equilibrium at temperature T. Each particle can be in any of the possible non – degenerate state of energy Equation . The average energy per particle of the gas, when Equation , is – (December)

Choices

Choice (4) Response

a.

ε

b.

Equation

c.

Equation

d.

Equation

f Page
Sign In