question_answer 31)

Crystal diffraction experiments can be performed using X-rays, or electrons accelerated through appropriate voltage. Which probe has greater energy? (For quantitative comparison, take the wavelength of the probe equal to 1 Å, which is of the order of inter-atomic spacing in the lattice) .  

Answer:

Here  For X ray,  For the electron, Squaring and solving, Clearly, the energy of photon is much greater than the energy of electron.