A free electron has a momentum of 5.0*10^-24kg . m/s.Its wavelength, as given by its wave function, is: A)1.3 *10^-8m B)1.3* 10^-10m C)2.3 * 10^-11m D)2.3* 10^-13m E)none of these

Question

Quizplus · Accepted Answer

The de Broglie wavelength of a particle is given by λ=h/p, where h is Planck's constant and p is the momentum. Plugging in the values given in the problem, we get λ=(6.626×10^-34)/(5.0×10^-24)=1.3×10^-10m. Therefore, the correct answer is B.

A Free Electron Has a Momentum of 5