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

Choices

Choice (4) Response

a.

b.

c.

d.

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 vibrational level of a diatomic molecule is with, 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 are given by, where, n is principal quantum number, and the corresponding wave functions are given by , where 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.

does not depend on and for the Coulomb potential

b.

There are different wave function for each

c.

There is a unique wave function and

d.

There are exactly different wave function , for each

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