AQA A Level Physics Particles & Radiation

• specific charge =?


  Charge/Mass
• MeV -> Kilograms


  MeV x 1.6x10^-19
• An Electron Volt Is


  Equal to the work done on an electron in accelerating it through a potential difference of one volt
• The equation for the energy of a photon is


  E = h x f
• E = h x f is also equal to:


  (hxc)/lambda
• Elementary Charge


  1.602e-19 C, charge of a single proton or electron
• Pair Production Steps


  Photon-nucleus interaction → Virtual particle pair creation → Particle-antiparticle annihilation → Electron and positron emissions