Quantum Free Electron Theory Quiz
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Questions and Answers

What is represented by Fermi energy in a material?

  • The highest occupied energy level (correct)
  • The total energy of the material
  • The average energy of all electrons present
  • The lowest unoccupied energy level

    • Which theory is unable to explain the photoelectric effect?

  • Free Electron Theory
  • Valence Bond Theory
  • Zero Magnetosun Theory (correct)
  • Quantum Free Electron Theory

    • In Quantum Free Electron Theory, what is the formula for electrical conductivity?

  • $σ = rac{nt^2}{e}$
  • $σ = rac{ne^2τ}{m}$ (correct)
  • $σ = rac{e^2τ}{mn}$
  • $σ = rac{mτ}{ne^2}$

    • What aspect of conductivity does the Free Electron Theory highlight at low temperatures?

    <p>Electrical and thermal conductivities behave differently</p> Signup and view all the answers

    What is the formula expressing the energy of a free electron in the Quantum Free Electron Theory?

    <p>$E_n = rac{h^2n^2}{8mL^2}$</p> Signup and view all the answers

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