Max Planck And Albert Einstein

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Task 2 - Max Planck and Albert Einstein Prior to the work of Max Planck and Albert Einstein, classical theory was the predominant scientific thinking. However, it eventually became evident that classical theory was unable to explain the occurrence of certain phenomenon observed in experimental data – in particular blackbody radiation and the photoelectric effect. The works of both Planck and Einstein have led to the development of quantum theory and contributed greatly to society’s understanding. As Planck and Einstein were both affected by the two World Wars, their work also played a role in politics. Einstein was an activist for world peace and believed that scientific research should be removed from social and political forces, and instead focused on the pursuit of knowledge and understanding. On the other hand, Planck was very patriotic and supported the rise of the Nazi regime. He believed that the purpose of science was to support a social and political agenda. During World War II, Planck remained in Germany conducting research directed to the war effort and faithful to the aims of the Nazi doctrine, while Einstein left Germany for the United States of America. Classical Theory and Blackbody Radiation The classical theory of thermal radiation states that thermal radiation originates from accelerating charged particles near the surface of the object and these charges emit radiation. It also states that as the temperature of the object increases, the acceleration of the oscillation (frequency) of the charges increases and the intensity of shorter wavelength (higher frequency) radiation increases. However, as figure 1 illustrates, there was a discrepancy between the classical theoretical prediction and the experimental resul... ... middle of paper ... ... the greater the total energy radiated (for a given temperature). Einstein also explained that wave and particle behaviour could coexist. In 1916, Robert Millikan confirmed Einstein’s equation for the kinetic energy of the electron and Planck’s constant. Verdict Therefore, I believe that Albert Einstein is the “father of quantum theory.” Although Max Planck was the founder of quantum theory, he doubted his own explanations. Einstein accepted Planck’s assumptions as true and was eventually able to confirm Planck’s proposals. Without Einstein, the idea of quantisation could have been easily dismissed. Instead, Einstein extended quantum theory. References http://hyperphysics.phy-astr.gsu.edu/hbase/mod6.html http://dwb.unl.edu/Teacher/NSF/C04/C04Links/www.fwkc.com/encyclopedia/low/articles/q/q021000030f.html http://www.physicsforums.com/showthread.php?t=576516

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