NDA » NDA Study Material » Physics » Know About Photoelectric Effect

Know About Photoelectric Effect

Photoelectric effect under a particular observation is affected in a metal surface and increment of energy can be seen in this particular field.

The photoelectric effect is the point of attraction of this field and it describes the release of electrically charged particles. The most important point of this study is that it defines the ejection of electrons of a metallic plate. This particular effect of this field increases the importance of this study and it also shows the high energy of blue, and green. This is the important part of this study and it also defines the principles, laws, conditions as well as functions of the photoelectric effect. All these parts are described below in this study so that the readers can get a clear idea about this study.  

What is the photoelectric effect?

The photoelectric effect is considered to be a phenomenon and in this particular field particles that are electrically charged are released. They are released within a material or from material and then it absorbs electromagnetic radiation. This photoelectric effect can sometimes be defined as an ejection of electrons from a metal plate and this occurs when the fall of light can be noticed. The energy of the radiant can be infrared in this field, can be ultraviolet light, and also can be visible. This effect is important in the field of physics and helps in many uses.   

Functions of the photoelectric effect

The photoelectric effect is a particular field of this study and it deals with its different functions. The function of this matter is noticeable and physics denotes different matters of it. It has functioned in the form of gas, liquid, or solid. The functional factor says that released particles may be in the form of ions. The ions can be molecules or electrically charged atoms. This particular effect of photoelectric has all these functions and they work in a different way. A voltage is generated in this field and it defines many factors of the present effect.    

The photoelectric effect was discovered by whom?

The famous scientist, Albert Einstein discovered the matter of photoelectric effect. In this field, he discussed the matter that increasing the frequency of light can produce electrons. The electrons seem to be filled with higher energy, but they produce it without increasing the number. This particular matter is known as the photoelectric effect and was discovered by him. The works of Einstein in this field proves this particular matter and his contribution in this matter of physics enriches the field with great aspects.  

Principles of photoelectric

Quantum mechanics denotes the fact that electrons are bound to atoms and act as a specific particle. It occurs in the electronic configuration which is generally occupied by electrons. The material in this field is known as the valence band. The principle also determines the electrical conductivity of the material. It has the ability to move from one atom to another one and carries current in a particular way. It determines the flow of positive charge in this field and denotes that the matter is very effective. Principles of photoelectric are described below-

  • Can readily move from atom to atom
  • Half filled with electrons
  • Little energy is required to excite electrons

Main laws of the photoelectric effect

The limited number of photoelectrons is proportional to the intensity of the light of the incident. It can also be seen that saturation current has a direct proportion to the intensity of the light incident. Photo electron’s kinetic energy is proportional here to the frequency of incident light. In this field, photoelectron emission has taken place on a given surface. Light incident frequency is more than any kind of minimum frequency, and it is called the frequency of threshold.   

Conditions of the photoelectric effect

Photoelectric effect in this field has certain conditions and it seems to be an observation of this field. It can be seen that a metal surface can be light stricken and it can also cause ejected electrons. The animated field of it shows that the energy of light has been increased. It can be seen that at the very first it becomes red, then goes to orange, and after that yellow to green, and lastly becomes blue. Therefore, it can be said that a certain condition for it is that light striking under a specified metal.    

Conclusion

This is the study that deals with the effect of photoelectric and this is the particular matter of discussion of this study. In this study, the clear description of this effect is described and it defines the father of this effect. Functions of the photoelectric effect are mentioned in this study and it also gives the principles of this present effect. Therefore, the idea came to be that the matter of photoelectric effect is the most attractive point of discussion in this field of study.  

faq

Frequently asked questions

Get answers to the most common queries related to the NDA Examination Preparation.

Who is the father of the photoelectric effect?

Ans. Albert Einstein in this field is considered to be the father of the photoelectric effect. The idea of this effe...Read full

What is the photoelectric effect?

Ans. This particular effect is nothing but the phenomenon in which particles that are electrically charged release w...Read full

Why does this effect occur?

Ans. The electromagnetic effect occurs because electrically charged particles have been released from a material. It...Read full

What conditions are needed for the emission of light?

Ans. The high energy of a metal is a condition for the emission of light and it is needed for the shine of light. Li...Read full