// Ex7_1 Page:113 (2014) clc;clear; e = 1.6e-019; // Energy conversion factor, J/eV mu_B = 9.27e-024; // Bohr magneton, J/T B = 3; // Magnetic field, T m_l = [-1, 1]; // Orbital magnetic quantum number dE = mu_B*B*(m_l(2)-m_l(1))/e; // Energy difference between m_l = -1 and m_l = +1, eV printf("\nThe energy difference between m_l = -1 and m_l = +1 components in 2p state = %4.2e eV", dE); // Result // The energy difference between m_l = -1 and m_l = +1 components in 2p state = 3.48e-004 eV