The photoelectric work function for a metal surface is 4.125 eV. The cut off wavelength for this surface is
A. 3000 Å
B. 2062.5 Å
C. 4125 Å
D. 6000 Å
Answer:A
The photoelectric work function for a metal surface is 4.125 eV. The cut off wavelength for this surface is
A. 3000 Å B. 2062.5 Å C. 4125 Å D. 6000 Å