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A photocell employs photoelectric effect...

A photocell employs photoelectric effect to convert

A

chanae in the frequency of light into a change in the electric current

B

change in the frequency of light into a change in electric voltage

C

change in the intensity of illumination into a change in photoelectric current

D

change in the intensity of illumination into a change in the work

Text Solution

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The correct Answer is:
3
The photoelectric current is directly proportional to the intensity of illumination. Therefore a change in the intensity of the incident radiation will change the photocurrent also.
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Knowledge Check

  • A photo - cell employs photoelectric effect to convert

    A
    Change in the frequency of light into a change in electric voltage
    B
    Change in the intensity o illumination into a change in photoelectric current
    C
    Change in the intensity of illumination into a change in the work function of the photocathode
    D
    Change in the frequency of light into a change in the electric current

  • In photoelectric effect

    A
    photons come out of a metal when it is hit by a beam of electrons
    B
    photons come out of the nucleus of an atom under the action of an electric field
    C
    electrons come out of a metal with a constant velocity which depends on the frequency and intensity of incident radiation
    D
    electrons come out of a metal with different velocities nor greater than a certain value which depends only on the frequency of the incident light and not on its intensity

  • In photoelectric effect

    A
    light energy is converted into the heat energy
    B
    light is converted into electric energy
    C
    light energy is converted into the sound energy
    D
    electric energy is converted into light energy

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