The photoelectric work function for a metal surface is 4.125 eV. The cut off wavelength for this surface is
(a) 4125 Å
(b) 3000 Å
(c) 6000 Å
(d) 2062.5 Å
The photoelectric work function for a metal surface is 4.125 eV. The cut off wavelength for this surface is
(a) 4125 Å
(b) 3000 Å
(c) 6000 Å
(d) 2062.5 Å