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What is photoelectric effect? Give any t...

What is photoelectric effect? Give any two practical applications of this effect. Write Einstein's photoelectric equation and use it to explain (i) independence of maximum energy of the emitted photoelectrons from intensity of incident light (ii) existence of a threshold frequency of the emitted photoelectrons from intensity of incident light.

Answer

Step by step text solution for What is photoelectric effect? Give any two practical applications of this effect. Write Einstein's photoelectric equation and use it to explain (i) independence of maximum energy of the emitted photoelectrons from intensity of incident light (ii) existence of a threshold frequency of the emitted photoelectrons from intensity of incident light. by PHYSICS experts to help you in doubts & scoring excellent marks in Class 12 exams.

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Explain how Einstein's photoelectric equation enables us to understand the (i) linear dependence, of the maximum K.E. of the emitted electrons, on the frequency of the incident radiations (ii) existance of a threshold frequency for a given photoemitter.

In a photoelectric emission process the maximum energy of the photo - electrons increase with increasing intensity of the incident light .

Knowledge Check

  • According to Einstein's photoelectric equation, the plot of the maximum kinetic energy of the emitted photoelectrons from a metal versus frequency of the incident radiation gives a straight line whose slope

    A
    depends on the nature of metal used
    B
    depends on the intensity or radiation
    C
    depends on both intensity of radiation and the nature of metal used
    D
    is the same for all metals and independent of the instensity or radiation

  • According to Einstein's photoelectric equation , the graph between the kinetic energy of photoelectrons ejected and the frequency of incident radiation is

    A
    B
    C
    D

    • Similar Questions

    Explore conceptually related problems

    In photoelectric emission the maximum energy of the photoelectrons increases on increasing the intensity of incident light.

    What is the effect on the velocity of the emitted photoelectrons if the wavelength of the incident light is decreased ?

    What is the effect on the velocity of emitted photoelectrons if the wavelength of the incident light is increased ?

    What is the effect on the maximum velocity of the emitted electron if the wavelength of the incident light is decreased?

    Maximum kinetic energy of the photoelectrons is independent of the intensity of incident radiation . Give reason.

    In photoelectric effect, the number of emitted photoelectrons is proportional to _____ of incident light.

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