Bad Qubits — Learn Quantum by Doing

Multiple choice

For a free non-relativistic electron (m = 9.109e-31 kg, hbar = 1.0546e-34 J*s), the group velocity is v_g = hbar*k/m. For wavenumber k = 1.0e10 m^-1, what is v_g in m/s?

2.32e6 m/s
1.16e44 m/s
5.79e5 m/s
1.16e6 m/s