A coherent beam of around1.937 eV photons is incident on the double slit. A screen is L = 1.8 m away from the source and the width of each and every slit is a = .010 mm. This forms an interference or diffraction pattern such that the second interference maxima is y2 = 46 mm from the center line.
If we wish for to duplicate this interference or diffraction pattern with mono-energetic electrons of mass me = 9*10-31 kg,
Determine what would be the kinetic energy of one of such electrons have to be?