If the Wave Function for a Free Electron Is Given

question 6

Multiple Choice

If the wave function for a free electron is given by Ψ = A sin kx + B cos kx, and the electron has a kinetic energy of 9.0 eV, what is the value for k?

• A)2.5 x 10⁹ m^-1
• B)1.0 x 10¹⁰ m^-1
• C)1.5 x 10¹⁰ m^-1
• D)4.5 x 10¹⁶ m^-1
• E)9.7 x 10¹⁷ m^-1