Photoelectric effect, discrete values of the tangent

In summary, Einstein's theory proposes that light is composed of particles with discrete amounts of energy (photons) and that this can explain the photoelectric effect. This was a groundbreaking idea at the time and provides a physical explanation for why light energy is quantized. While other explanations, such as the one proposed, can also account for the results of the experiment, they do not provide the same comprehensive understanding of the phenomenon.
  • #1
LostConjugate
850
3
It puzzles me. In Einstein's paper on the photoelectric effect he proposed that photons with [tex] E = nhf [/tex] were the explanation.

Wouldn't a more elegant explanation be that the tangent of the electromagentic wave must take on discrete values because of the boundary conditions between the emitter and the metal plate? This seems to give the same results, the acceleration and therefor the energy of the wave would be in quanta [tex] E = nhf [/tex].

I don't see a need to use the particle theory of light to describe this experiment in it's original form.
 
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  • #2
In Einstein's paper, he proposed that light is composed of small quanta of energy (photons) and that this could explain the photoelectric effect. This idea was revolutionary at the time as most scientists believed that light was a wave-like phenomenon. The idea that light was composed of particles with discrete amounts of energy was a new concept. The explanation that you propose, involving the boundary conditions between the emitter and the metal plate, is an interesting one. While it does give the same results as Einstein's theory, it does not provide a physical explanation for why the light energy is quantized, as Einstein's theory does. Therefore, while your explanation is valid, Einstein's theory provides a more comprehensive understanding of the photoelectric effect.
 

1. What is the photoelectric effect?

The photoelectric effect is a phenomenon where electrons are emitted from a material when it is exposed to light of a certain frequency or higher. This was first observed by Heinrich Hertz in 1887.

2. How does the photoelectric effect relate to discrete values of the tangent?

The photoelectric effect is related to the discrete values of the tangent through the work function of a material. The work function is the minimum amount of energy required to remove an electron from the surface of a material. The discrete values of the tangent correspond to the different energy levels of the electrons in the material.

3. What is the significance of the photoelectric effect?

The photoelectric effect is significant because it provided evidence for the particle nature of light, as proposed by Albert Einstein in 1905. It also led to the development of the concept of photons and helped to explain various phenomena in quantum mechanics.

4. What are some real-life applications of the photoelectric effect?

The photoelectric effect has many practical applications, such as in solar panels, photodiodes, and photomultiplier tubes. It is also used in various types of sensors, such as in cameras, burglar alarms, and automatic doors.

5. How does the photoelectric effect contribute to our understanding of the atomic structure?

The photoelectric effect provided evidence for the existence of discrete energy levels in atoms, which helped to support the Bohr model of the atom. It also played a crucial role in the development of quantum mechanics, which revolutionized our understanding of the atomic structure and subatomic particles.

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