Question

Draw the schematic labelled diagram of the arrangement used in Davisson-Germer experiment. What the significance of this experiment?​

Answer 1

Davisson-Germer experiment  proves the De-Broglie hypothesis which states that electron also has wave nature.

Answer 2

Answer:

Explanation:

Davisson-Germer experiment is discussed below:

• An electron gun was coated with a tungsten F filament  with barium oxide and heated with a low voltage power source.  
• When a suitable potential difference is applied from a high voltage source, the electron gun emits electrons, which are accelerated back to a certain speed.  
• In a perforated cylinder  with fine holes along its axis, these emitted electrons were passed through it, creating a fine collimated beam.
• The beam generated by the cylinder falls back on the surface of a nickel crystal. This causes the electrons to scatter in different directions.  
• The generated electron beam  has a certain intensity, which is measured by the electron detector and, after being connected to a sensitive galvanometer (for power consumption), moves on a circular scale.  
• By moving the detector on the circular scale at different positions that change the θ (angle between the incident and  scattered electron beam), the intensity of the scattered electron beam is measured for different values ​​of the scattering angle.