Part 1: Find the energy of the ground state (n = 1) of a proton in a one-dimensi
ID: 1521365 • Letter: P
Question
Part 1: Find the energy of the ground state (n = 1) of a proton in a one-dimensional box of length 1.1 nm. Answer in units of meV.
Part 2: Calculate the wavelength of electromagnetic radiation emitted when the photon makes a transition from n = 2 to n = 1. Answer in units of m.
Part 3: Calculate the wavelength of electromagnetic radiation emitted when the photon makes a transition from n=3 to n=2. Answer in units of m.
Part 4: Calculate the wavelength of electromagnetic radiation emitted when the photon makes a transition from n=3 to n=1. Answer in units of m.
Explanation / Answer
Here, En = (n2h2)/(8mL2)
Part 1) energy of the ground state = (6.63 * 10-34)2/(8 * 1.67 * 10-27 * 1.1 * 1.1 * 10-18)
= 2.719 * 10-23 J
= 0.1699 meV
Part 2) Here, energy difference = 13.6 * (3/4) * 1.6 * 10-19
= 1.632 * 10-18 J
=> wavelength = (6.63 * 10-34 * 3 * 108)/(1.632 * 10-18)
= 0.1218 m
Part 3) wavelength = (6.63 * 10-34 * 3 * 108)/(3.022 * 10-19)
= 0.6581 m
Part 4) wavelength = (6.63 * 10-34 * 3 * 108)/(1.934 * 10-18)
= 0.1028 m