Max Plank's Quantum Theory

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Max Plank’s Quantum Theory:
At the time of the late 18th century, most physicists believed that there was not much more to be discovered in physics, and that they had discovered most of what was there in it. This was the time when the classical physics was mostly accepted in science. But at the time of the start of the 20th century, physicists came to know that the laws of physics weren’t valid in the atomic world.
The Photoelectric effect did not work according to the theories of light that were widely accepted at the time of its discovery. An increase in the energy of light did not have the same result as an increase in the intensity of light. Because of this, the scientists then tried to discover new laws which also applied to the atomic
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The distance from one wave peak to another is known as wavelength, which also can be measured in meters. The number of waves that pass by each second is known as frequency. As frequency and wavelength are inversely related, their multiplication always is a constant, like the speed of light. The position of any specific occurrence of an Electromagnetic radiation on the electromagnetic spectrum is determined by its wavelength and frequency. c=λvc=λv is used to determine the conversion of a wavelength of a…show more content…
But the wave model is not sufficient to explain the phenomena known as the ‘Photoelectric effect’. This effect was discovered when some electrons were emitted when light was focused on certain metals. There is a minimum threshold frequency of electromagnetic radiation for each metal needed to be directed to its surface in order to emit electrons. A certain amount of light could not be replaced with one frequency along with twice as much as light of half the frequency. The effect of light should be cumulative if light only acts as a wave and little by little the light should add up until it leads electrons to be emitted. But what triggers the emission of electrons is a clear cut minimum of the frequency of the light. What this implies is that energy is directly linked to frequency and more energy with the higher light frequency. The discovery of the phenomena that the minimum amount of energy which could be gained or lost by an atom was a result of this observation. This minimum amount was named by Max Planck as quantum, plural of which is quanta, meaning how much. One quantum of energy is carried by one photon of
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