An electron has a de Broglie wavelength equal to the wavelength of an X-ray photon of frequency 1.5 × 1019 Hz.
What is the momentum of the electron?
9.9×10−15 kg m s−19.9 \times 10^{-15} \text{ kg m s}^{-1}9.9×10−15 kg m s−1
1.3×10−22 kg m s−11.3 \times 10^{-22} \text{ kg m s}^{-1}1.3×10−22 kg m s−1
3.3×10−23 kg m s−13.3 \times 10^{-23} \text{ kg m s}^{-1}3.3×10−23 kg m s−1
1.3×10−44 kg m s−11.3 \times 10^{-44} \text{ kg m s}^{-1}1.3×10−44 kg m s−1
