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Light of wavelength 2000Å is incident on...

Light of wavelength `2000Å` is incident on a metal surface of work function 3.0 eV. Find the minimum and maximum kinetic energy of the photoelectrons.

Text Solution

Verified by Experts

The correct Answer is:
A, C
`K_(min) = 0`
and `K_(max) = E -W
`=(12375)/(2000)- 3.0`
`~~3.19 eV`
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Knowledge Check

  • A light of wavelength 600 nm is incident on a metal surface. When light of wavelength 400 nm is incident, the maximum kinetic energy of the emitted photoelectrons is doubled. The work function of the metals is

    A
    1.03 eV
    B
    2.11 eV
    C
    4.14 eV
    D
    2.43 eV

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