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The stopping potential for the photoelec...

The stopping potential for the photoelectrons emitted from a metal surface of work function 1.7 eV is 10.4 V. Find the wavelength of the radiation used. Also, identify the energy levels in hydrogen atom which will emit this wavelength.

A

The wave length of light used is 1022 Å

B

The wavelength of light used is 970.6 Å

C

The ligth used is emitted by hydrogen gas sample which de-excited from n=3 to n=1

D

The ligth used is emitted by hydrogen gas sample which de-excited from n=4 to n=1

Text Solution

Verified by Experts

The correct Answer is:
1,3
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Knowledge Check

  • The work function of Cs is 2.14 ev find the wavelength of the incident light if the stopping potential is 0.6 V.

    A
    326 nm
    B
    454 nm
    C
    524 nm
    D
    232 nm

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