Davison and germa [Music] experiment in 1924 Louie the Brockley postulated that all forms of matter have both wave and particle characteristics according to this hypothesis electron just like light have a dual particle wave nature two American physicists CJ Davison and LH germa were the first to experimentally prove the wave nature of material particles in [Music] 1927 displayed here is a Blog diagram of the experimental setup used by Davison and germa it consisted of a nickel chloride Crystal the Target and a electron gun G and a detector the electron gun produced a beam of electrons the electron gun used by them consisted of a Tungsten filament F and high and low tension batteries the low tension battery was used to heat the filament the red hot filament produced an electron beam a high tension battery was provided to accelerate the Electron Beam the detector or the electron collector moved on a graduated circular scale a sensitive galvanometer was also connected to the detector how did they perform the [Music] experiment the Electron Beam was made to pass through a pinhole and made to strike the crystal normally the electrons scattered in all directions acting like waves they observed that at certain angles the detector indicated a peak in the intensity of the scattered Electron [Music] Beam this maximum intensity was due to constructive interference a phenomenon confined only to waves thus they experimentally proved the wave nature of electrons [Music] Davison and germa plotted a graph taking the angle between the incident and Scattered direction of the Electron Beam five along the y- AIS and the intensity of the scattered Beam at different values of accelerated potentials along the x-axis the nature of the graph is shown here from the experimental curves obtained the following conclusions were drawn intensity of scattering depends upon the angle of scattering five a bump or Kink always occurs in the curve when 5 is equal to 50° this bump or Kink increases as the accelerating potential difference is increased at 54 w Vols this bump is maximum and then it decreases on further increase of potential difference the speak indicated the wave behavior of the electrons thus Davison germa experiment verifies the Broly's hypothesis of wave nature of matter particles [Music]