Atomic & Molecular Physics (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 1 - 3 of 19

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Question number: 1

» Atomic & Molecular Physics » Width of Spectrum Lines

Appeared in Year: 2013

MCQ▾

Question

Two monochromatic source, Equation , emit light at 600 and 700 nm, respectively. If their frequency bandwidths are Equation and Equation GHz, respectively, then the ratio of line width of Equation to Equation is approximately – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 2

» Atomic & Molecular Physics » Diatomic Molecules » Vibrational

Appeared in Year: 2014

MCQ▾

Question

If the leading anharmonic correction to the energy of the energy of Equation vibrational level of a diatomic molecule is Equation withEquation , the total number of energy levels possible is approximately, (December)

Choices

Choice (4) Response

a.

1000

b.

250

c.

500

d.

750

Question number: 3

» Atomic & Molecular Physics » Relativistic Corrections for Energy Levels of Hydrogen Atom

Appeared in Year: 2011

MCQ▾

Question

The energy levels of the non –relativistic electron in a hydrogen atom i. e. , in a Coulomb potential Equation are given byEquation , where, n is principal quantum number, and the corresponding wave functions are given by Equation , where Equation is the orbital angular momentum quantum number and m is the magnetic quantum number. The spin of the electron is not considered. Which of the following is a correct statement? - (June)

Choices

Choice (4) Response

a.

Equation does not depend on Equation and Equation for the Coulomb potential

b.

There are Equation different wave function Equation for each Equation

c.

There is a unique wave function Equation and Equation

d.

There are exactly Equation different wave function Equation , for each Equation

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