Quantum Mechanics and Semiconductor Fundamentals Quiz 1

What is the significance of quantum mechanics in nanoelectronics?

• It is classical
• Important for large devices
• Significant in small devices
• Used in thermodynamics

Which principle states that position and momentum cannot be precisely known simultaneously?

• Newton’s Law
• Planck’s law
• Coulomb law
• Ohm’s law

What is the main purpose of the Schrödinger equation?

• To measure voltage
• To define resistance
• To describe electron behaviour
• To block current

What physical quantity does |φ(x)|² represent in quantum mechanics?

• Position
• Probability density
• Energy state
• Mass of particle

What is quantum tunnelling?

• A particle's absorption
• A classical rebound
• Tunnelling through barrier
• Electron emission below gap

Which constant is used in de Broglie's wavelength equation?

• Avogadro’s number
• Coulomb constant
• Planck’s constant
• Boltzmann constant

What happens when E < V in the Schrödinger equation?

• Wave decays
• Constant wave
• Unstable motion
• Free electron

What is meant by quantisation of energy?

• Continuous energy
• Fixed potential
• Discrete values
• Infinite energy

Which quantum number defines the shape of atomic orbitals?

• Principal
• Azimuthal
• Magnetic
• Charge

What is the spin quantum number for an electron?

• 1
• 0
• -1
• 1/2