Quantum Quantum Rydberg formula, probability distribution of a particle’s location. Pauli Exclusion Principle, quantum mechanical model 1 / 10 What is the Heisenberg Uncertainty Principle about? Position and momentum Energy and speed Wavelength and frequency Mass and charge 2 / 10 What is a photon? A particle of energy A particle of matter A wave of sound A wave of gravity 3 / 10 What does quantum entanglement imply? Particles can only interact if close together. Particles can influence each other over any distance. Particles become identical in state. Particles cannot interact. 4 / 10 If an electron in a hydrogen atom transitions from n=3 to n=2, what is the wavelength of emitted light? (Rydberg constant = 1.097 × 10⁷ m⁻¹) 656 nm 486 nm 434 nm 410 nm 5 / 10 What property of a particle is represented by its wavefunction? Energy Probability distribution Mass Speed 6 / 10 Calculate the de Broglie wavelength of an electron (mass = 9.1 × 10⁻³¹ kg) moving at 2 × 10⁶ m/s. (Planck’s constant = 6.63 × 10⁻³⁴ Js) 3.6 × 10⁻¹⁰ m 4.2 × 10⁻¹⁰ m 1.8 × 10⁻¹⁰ m 2.0 × 10⁻¹⁰ m 7 / 10 What is the Pauli Exclusion Principle about? Energy levels of electrons No two electrons can have identical quantum states Only specific orbits are allowed for electrons Electrons radiate energy as waves 8 / 10 What is the dual nature of particles in quantum mechanics? Energy and charge Spin and momentum Matter and antimatter Wave and particle 9 / 10 What is the quantum mechanical model of the atom based on? Probability clouds for electrons Fixed planetary orbits Nucleus surrounded by vacuum Orbits as in classical physics 10 / 10 What is the energy of a photon with a wavelength of 500 nm? (Planck’s constant = 6.63 × 10⁻³⁴ Js, c = 3 × 10⁸ m/s) 3.98 × 10⁻¹⁹ J 2.49 × 10⁻¹⁹ J 5.52 × 10⁻¹⁹ J 4.12 × 10⁻¹⁹ J Your score is By WordPress Quiz plugin
