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In a photoelectric effect, the anode pot...

In a photoelectric effect, the anode potential is plotted against the plate current

A

A and B will have different intensities while B and C will have different frequencies.

B

B and C will have different intensities while A and C will have different frequencies.

C

A and B will have different intensities while A and C will have equal frequencies.

D

A and B will have equal intensities while B and C will have different frequencies.

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The correct Answer is:
A
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Knowledge Check

  • In photoelectric effect,

    A
    electrons are emitted from the metals when light rays (radiations) are reflected from it.
    B
    light of longer wavelength is more effective than light of shorter wavelength.
    C
    light of shorter wavelength is more effective than light of longer wavelength.
    D
    light is not used.

  • In photoelectric effect,

    A
    the emission of electron is the result of elastic collision between the incident photon and the electron.
    B
    absorption of photon is a gradual process.
    C
    the emission of electron is a result of inelastic collision between the photon and the electron.
    D
    at the threshold frequency, the kinetic energy of ejected electrons is maximum.

  • For photoelectric effect, the stopping potential depends on

    A
    the intensity of light.
    B
    the nature of surface of the metal.
    C
    both the intensity of light and nature of surface of metal.
    D
    both the frequency of incident light and nature of surface of metal.

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    Observations from an experiment on photoelectric effect for the stopping potential by varying the incident frequency were plotted. The slope of the linear curve was found to be approximately 4.1xx10^(-15)Vs . Given that the charge of an electron is 1.6xx10^(-19)C , find the value of the Planck's constant h.

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