Question
(a) Calculate the momentum of a photon having a wavelength of $10.0 \textrm{ nm}$ (b) Find the velocity of an electron having the same momentum. (c) What is the kinetic energy of the electron, and how does it compare with that of the photon?
1. 6.63\times 10^{-26} \textrm{ kg}\cdot \textrm{m/s}$2. 7.27 \times 10^{4} \textrm{ m/s}$
3. The energy of the photon is greater than the kinetic energy of the electron by a factor of 8240.
Solution Video