GATE (Graduate Aptitude Test in Engineering) Physics: Questions 135 - 138 of 622

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Question number: 135

» Atomic and Molecular Physics » LS and JJ Coupling

Appeared in Year: 2012

MCQ▾

Question

The terms Equation arising from Equation electronic configuration in Equation coupling scheme are –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 136

» Thermodynamics and Statistical Physics » Classical and Aquantum Statistics

Appeared in Year: 2012

MCQ▾

Question

At a certain temperature T, the average speed of nitrogen molecules in air is found to be Equation . The most probable and the root mean square speeds of the molecules are, respectively –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 137

» Electromagnetic Theory » Energy and Momentum of Electromagnetic Waves

Appeared in Year: 2012

MCQ▾

Question

The space – time dependence of the electric field of a linearly polarized light in free space is given by Equation whereEquation and Equation are the amplitude, the angular frequency and the wavevector, respectively. The time average energy density associated with the electric field is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 138

» Quantum Mechanics » One, Two and Three-Dimensional Potential Problems

Appeared in Year: 2012

MCQ▾

Question

A particle of mass Equation is confined in a two dimensional square well potential of dimension Equation . This potential Equation is given by,

Equation

The energy of the first excited state for this particle is given by,

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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