A beam of white light of a certain frequency is incident on a metal surface. If the work function of this surface is 2.20 eV,

what frequency of light would give a maximum kinetic energy of 0.25 eV to the photoelectrons ejected from this surface?
A)

2.05 × 1014 Hz
B)

1.02 × 1014 Hz
C)

2.50 × 1014 Hz
D)

3.53 × 1014 Hz
E)

5.92 × 1014 Hz


E

Physics & Space Science

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