Quantum Mechanics Condensed Matter Physics for Engineers Quiz
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Questions and Answers

Quantum mechanics gives the description of motion and interaction of particles in the small scale ______ system where the discrete nature of the physical world becomes important

atomic

QM successfully introduced the concept of discrete energy which led to the conception and advancements in ______ computing

quantum

Black-body radiation is the type of electromagnetic radiation emitted by a black body held at constant, uniform ______

temperature

The energy distribution in the black body spectrum is explained by Wien’s distribution law in the lower wavelength region and Rayleigh Jean’s law explains the energy distribution in the larger wavelength ______

<p>region</p> Signup and view all the answers

According to Planck’s quantum theory thermal energy is not emitted or absorbed continuously, but it is emitted or absorbed in discrete quantities called ______

<p>quanta</p> Signup and view all the answers

De Broglie Hypothesis and Matter Waves, de Broglie wavelength and derivation of expression by analogy, Phase Velocity and Group Velocity, Heisenberg’s Uncertainty Principle and its application in broadening of spectral lines, Principal of ______.

<p>complementarity</p> Signup and view all the answers

Wave Mechanics: Wavefunction, Time independent Schrodinger wave equation, Physical Significance of a wave function, Expectation value, Eigen functions and Eigen Values, Motion of a particle in a one-dimensional potential well of infinite depth, Wavefunction and ______.

<p>Probabilities</p> Signup and view all the answers

At the beginning of the 20th century, Newton’s laws of motion were able to successfully describe the motion of the particles in classical mechanics (the world of large, heavy and slow bodies) and Maxwell’s equations explained phenomena in classical electromagnetism. However the classical theory does not hold in the region of atomic dimensions. It could not explain the stability of atoms, energy distribution in the black body radiation spectrum, origin of discrete spectra of atoms, etc. It also fails to explain the large number of observed phenomena like photoelectric effect, ______, Raman Effect, Quantum Hall effect, superconductivity etc.

<p>ComptonEffect</p> Signup and view all the answers

The classical theory does not hold in the region of atomic dimensions. It could not explain the stability of atoms, energy distribution in the black body radiation spectrum, origin of discrete spectra of atoms, etc. It also fails to explain the large number of observed phenomena like photoelectric effect, ComptonEffect, Raman Effect, Quantum Hall effect, ______ etc.

<p>superconductivity</p> Signup and view all the answers

Newton’s laws of motion were able to successfully describe the motion of the particles in classical mechanics (the world of large, heavy and slow bodies) and Maxwell’s equations explained phenomena in classical electromagnetism. However the classical theory does not hold in the region of atomic dimensions. It could not explain the stability of atoms, energy distribution in the black body radiation spectrum, origin of discrete spectra of atoms, etc. It also fails to explain the large number of observed phenomena like ______, ComptonEffect, Raman Effect, Quantum Hall effect, superconductivity etc.

<p>photoelectric effect</p> Signup and view all the answers

What concept did quantum mechanics successfully introduce, leading to the conception and advancements in a specific type of computing?

<p>Quantum computing</p> Signup and view all the answers

Which theory explains that thermal energy is emitted or absorbed in discrete quantities called what?

<p>Planck's quantum theory</p> Signup and view all the answers

What principle of quantum mechanics is applied in the broadening of spectral lines?

<p>Heisenberg’s Uncertainty Principle</p> Signup and view all the answers

In which region is the energy distribution in the black body spectrum explained by Wien’s distribution law?

<p>Lower wavelength region</p> Signup and view all the answers

What concept in quantum mechanics describes the motion and interaction of particles in the small scale system where the discrete nature of the physical world becomes important?

<p>Wave Mechanics</p> Signup and view all the answers

Who successfully explained the energy distribution in the black body radiation spectrum using quantum theory?

<p>Max Planck</p> Signup and view all the answers

What concept introduced by quantum mechanics led to advancements in quantum computing and efficient long distance data transfer?

<p>Discrete energy</p> Signup and view all the answers

In the black body radiation spectrum, which law explains the energy distribution in the lower wavelength region?

<p>Wien’s distribution law</p> Signup and view all the answers

What did Max Planck propose about the emission and absorption of thermal energy?

<p>It occurs in discrete quantities called quanta</p> Signup and view all the answers

What type of electromagnetic radiation is emitted by a black body held at constant, uniform temperature?

<p>Black-body radiation</p> Signup and view all the answers

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