Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
2/7/2011 How Einstein believed the photoe The Photoelectric Effect By: Robert Figliozzi, Lisa Hill, Justin Jachowski, and Kyle Reddick The emission of high energy electrons by metals caused by the absorption of light of appropriate wavelengths. Classical explanation and its flaws: An introduction to Albert Einstein: Albert Einstien's quantum explanation of the photoelectric effect: Birth: March 14, 1879 in Ulm, Wurttemberg Death: April 18, 1955 in Princeton, New Jersey Family: Derivation of the typical • Mother: Pauline Einstein photoelectric effect equation • Father: Hermann Einstein and the conservation of • The Einstein family had been living in that part of Europe for over two hundred years. Both sides of his energy: family were Jewish. During that time period it was hard to be Jewish. Einstein’s father ran an electrical engineering company in Munich and later in Milan. Pauline Einstein was a musician and gave her love of An introduction to Albert music to her son. Einstein: Service during the War: • At this time Albert Einstein was a Swiss citizen working for a paten office in Britain. As such he did serve Evidence identifying the in any capacity during the First World War. During the Second World War he was a professor at the quantum explanation as more Berlin academy of science and had to escape. He then moved to America and became a professor at superior: Princeton and helped with the Manhattan project. (Above: Albert Einstien in 1921 in Vienna. Source, Public Domain) Advancement of quantum theory: Education: Working with the Home schooled until age 5 photoelectric effect Solutions October 1, 1885 attended catholic elementary school as a second grader to Atkins, end of chapter October 1, 1888 attended Luitpold Gymnasium (high school). exercise 8.13 b.): He did not graduate from the Gymnasium, Einstein was released for the medical reason of neurasthenic exhaustion with a certificate saying he was proficient in math References: Failed his first entrance exam for polytechnic in Zurich, he was lacking in language skill. Then attended Cantonal school in Aarau in October 1896. On his second attempt he gained admittance to polytechnic in Zurich and graduated in 1900. Quantum approach: • Einstein was 26 years old when he wrote his papers on the quantum hypothesis in 1905 arguing for the notion of light quanta. Embraced Ideas: • In 1907 applied quantum hypothesis to the model of a solid as a lattice of atoms harmonically bound to their equilibrium positions. • 1911 Nernst reported confirmation of the quantum hypothesis outside of the field of radiation. Nobel Prize: • Contrary to common assumption Einstein did not receive his Nobel prize for his work on the theory of relativity. In 1922 Albert Einstein won the Nobel Prize for the photoelectric effect. file:///F:/Photoelectric/einstein.htm 1/1