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The work function for metals A , B and C...

The work function for metals `A , B` and `C` are respectively `1.92 eV , 2.0 eV` and `5 eV`. According to Einstein's equation , the metals which will emit photoelectrons for a radiation of wavelength `4100 Å` are

A

None

B

A only

C

A and B only

D

All the three metals

Text Solution

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The correct Answer is:
C
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Knowledge Check

  • The work functions for metals A, B and C are respectively 1.92 eV, 2.0 eV and 5 eV. According to Einstein's equation the metals which will emit photoelectrons for a radiation of wavelength 4100 Å is/are

    A
    A only
    B
    A and B only
    C
    All the three metals
    D
    C only

  • The work function for metals A,B and C are respectively 1.92 eV, 2.0 eV and 5.0 eV. According to Einstein's equation, the metals which will emit photoelectrons for a radiation of wavelength 4100 Å is/are

    A
    none of these
    B
    a only
    C
    A and B only
    D
    all the three metals.

  • The work function for metals X , Y and Z are respectively 1.92 eV , 2.0 eV and 5.0 eV . According to Einstein equation , the metal which will emit photoelectrons for a radiation of wavelength 4100 "Å" is/ are :

    A
    X only
    B
    X and Y only
    C
    X , Y and Z
    D
    X and Z

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