Quantization Quantization energy of a photon, principal quantum number, ground state energy, Planck constant, Blackbody radiation, de Broglie wavelength 1 / 10 A photon has a frequency of 5×1014 Hz5 times 10^{14} , text{Hz}5×1014Hz. What is its energy? 3.3×10−19 J3.3 times 10^{-19} , text{J}3.3×10−19J 5.0×10−19 J5.0 times 10^{-19} , text{J}5.0×10−19J 6.6×10−19 J6.6 times 10^{-19} , text{J}6.6×10−19J 7.5×10−19 J7.5 times 10^{-19} , text{J}7.5×10−19J 2 / 10 In a hydrogen atom, what does the quantum number nnn represent? Orbital shape Energy level Spin orientation Magnetic field 3 / 10 In quantum mechanics, what is the minimum energy of a quantum harmonic oscillator called? Ground state energy Potential energy Kinetic energy Total energy 4 / 10 What is the Planck constant used to quantify? The speed of light The momentum of a particle The wavelength of light Energy of a photon 5 / 10 What is the relationship between quantization and blackbody radiation? Blackbody radiation is continuous Energy is emitted in discrete packets All frequencies are equally probable Radiation depends only on wavelength 6 / 10 What is the energy (in eV) of a photon emitted when an electron transitions from the n=3 to n=2 state in a hydrogen atom? 0.85 eV 1.89 eV 3.4 eV 1.51 eV 7 / 10 A particle is confined in a one-dimensional box of width L=2 nm. What is the energy of the first excited state? (Planck’s constant h = 6.626×10⁻³⁴ J·s, mass of particle m = 9.11×10⁻³¹ kg) 2.42×10⁻¹⁹ J 6.05×10⁻²⁰ J 9.68×10⁻²⁰ J 1.21×10⁻¹⁹ J 8 / 10 Calculate the de Broglie wavelength of an electron accelerated through a potential difference of 100 V. (h = 6.626×10⁻³⁴ J·s, m = 9.11×10⁻³¹ kg) 1.23 nm 12.3 nm 0.123 nm 0.5 nm 9 / 10 In quantum harmonic oscillators, the energy difference between two consecutive levels is 0.5 eV. What is the frequency of oscillation? (h = 6.626×10⁻³⁴ J·s, 1 eV = 1.602×10⁻¹⁹ J) 1.21×10¹⁴ Hz 2.42×10¹⁴ Hz 3.63×10¹⁴ Hz 4.84×10¹⁴ Hz 10 / 10 What is the total number of states in a three-dimensional cubical potential box for n_x, n_y, n_z ≤ 2? 7 8 27 19 Your score is By WordPress Quiz plugin
