Einstein - photoelectric effect

Einstein - photoelectric effect
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  • ALBERT EINSTEIN Photoelectric effect
  • I was born on March 14th, 1879 in the city Ulm, Germany. I was fascinated by math and science as a child. 
  • The photoelectric effect is based on the idea that electromagnetic radiation is made of a series of particles called photons. When a photon hits an electron on a metal surface, the electron can be emitted. The emitted electrons are called photoelectrons.
  • I worked in the patent office where I did most of my creative work. In 1913, I arrived at the University of Berlin. 
  • In 1905, Albert Einstein published a paper advancing the hypothesis that light energy is carried in discrete quantized packets to explain experimental data from the photoelectric effect. This model contributed to the development of quantum mechanics.
  • There were many experiments done by many other scientists to discover and test the photoelectric effect, such as Henrich Hertz, Max Planck, Phillie Lenard and Robert Millikan
  • He also said that the maximum energy of ejected electrons should increase linearly with frequency of the applied light
  • Einstein believed that light behaved like a particle (photon)
  • Einstein is mostly focused on the field of physics and best known by the general public for his mass-energy equivalence formula E = mc2
  • The scientist saw that the energy of electrons does NOT depend on the intensity of the light
  • -No electrons are produced if frequency of light waves is below critical value
  • -Electrons always appear as soon as the light reaches the plate
  • www.daviddarling.info/encyclopedia/E/Einstien_and_photoelectric_effect.html
  • www.daviddarling.info www.history.com www.khanacademy.org
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