Atomic and Molecular Physics [GATE (Graduate Aptitude Test in Engineering) Physics]: Questions 48 - 52 of 58

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Question 48

Atomic and Molecular Physics

Appeared in Year: 2006

Question

MCQ▾

In the linear Stark effect, the application of an electric field –

Choices

Choice (4)Response

a.

Partially lifts the degeneracy of level on hydrogen atom and splits level into three levels

b.

Partially lifts the degeneracy of level on hydrogen atom and splits level into two levels

c.

Does not affect the levels

d.

Completely lifts the degeneracy of level on hydrogen atom and splits level into four levels

Question 49

Appeared in Year: 2006

Question

MCQ▾

In the microwave spectrum of identical rigid diatomic molecules, the separation between the spectral lines is recorded to be . The momentum of inertial of the molecule, in , is –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 50

Atomic and Molecular Physics

Appeared in Year: 2006

Question

MCQ▾

The target of an tube is subjected to an excitation voltage . The wavelength of the emitted is proportional to –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 51

Atomic and Molecular Physics
Population Inversion

Appeared in Year: 2006

Question

MCQ▾

Which one of the following electronic transitions in Neon is not responsible for LASER action in a Helium – Neon laser?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 52

Appeared in Year: 2006

Question

MCQ▾

In a crystal of primitive cells, each cell contains two monovalent atoms. The highest occupied energy band of the crystal is –

Choices

Choice (4)Response

a.

One – third filled

b.

Half filled

c.

One – fourth filled

d.

Completely filled

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