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Statement-1: In Photoelectric effect , e...

Statement-1: In Photoelectric effect , electrons absorbing the photon can not be a free electron.
Statement -2: A free electron can't absorb a photon completely

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The correct Answer is:
A
A free electron can't absorb a photon completely.
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Knowledge Check

  • In a photoelectric effect, electrons are emitted

    A
    with a maximum velocity proportional to the frequency of the incident radiation
    B
    at a rate that is independent of the intensity of the incident radiation
    C
    only if the frequency of the incident radiation is above a certain threshold value
    D
    only if the temperature of the emitter is high

  • In photoelectric effect, emitted electrons are

    A
    those which are moving in a shell near to the nucleus
    B
    those which are present in the nucleus
    C
    those which are moving freely in the inter atomic distance
    D
    those which are produced from neutron disintegration

  • The free electrons of a metal are free to

    A
    move on the surface only
    B
    are free to escape through the surface
    C
    are free to fall into the nuclei
    D
    are free to move anywhere in the metal

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    Prove that a free electron at rest in a vacuum cannot absorb a photon.

    Do all the electrons that absorb a photon come out as photoelectrons ?

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    Do all the electrons that absorb a photon come out as photoelectrons?

    Statement-1 : In photoelectric effect, the number of photoelectrons emitted is always equal to number of photons incident. and Statement-2 : All the photons fallin on the surface will eject photoelctron, is not necessary.

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