• (no title)
                                                    https://youtu.be/O3D2belxKBs
  • stopping potential or cut off potential
    Cut-off potential  : The minimum negative potential required to just make the photo electric current of the plate is zero, defined as stop...
  • Ideal Crystal
    Ideal Crystal  :-    An ideal crystal is that which has similar unit cell containing the same lattice points throughout the whole crysta...