GATE (Graduate Aptitude Test in Engineering) Physics: Questions 149 - 151 of 622

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Question number: 149

» Quantum Mechanics » Elementary Scattering Theory

Appeared in Year: 2012

MCQ▾

Question

The ground state wave function for the hydrogen atom is given by Equation , where Equation is the Bohr radius. The plot of the radial probability density, Equation for the hydrogen atom in the ground state is –

Choices

Choice (4) Response

a.

The plot of the radial probability density Choice: A

The Plot of the Radial Probability Density Choice: A

In figure the plot of radial probability density is shown.

b.

The plot of the radial probability density Choice: B

The Plot of the Radial Probability Density Choice: B

In figure the plot of radial probability density is shown.

c.

The plot of the radial probability density Choice: C

The Plot of the Radial Probability Density Choice: C

In figure the plot of radial probability density is shown.

d.

The plot of the radial probability density Choice: D

The Plot of the Radial Probability Density Choice: D

In figure the plot of radial probability density is shown.

Question number: 150

» Electromagnetic Theory » Electromagnetic Waves and Their Reflection

Appeared in Year: 2012

MCQ▾

Question

A plane electromagnetic wave traveling in free space is incident normally on a glass plate of refractive index Equation . If there is no absorption by the glass, its reflectivity is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 151

» Quantum Mechanics » Postulates of Quantum Mechanics

Appeared in Year: 2012

MCQ▾

Question

Consider the wavefunction Equation for a ferromagnetic system consisting of two spin – half particles. The spatial part of the wavefunction is given by –

Equation

Where, Equation and Equation are single particle states.

The spin part of Equation of the wavefunction with spin states Equation and Equation should be –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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