Work Function Photoelectric Effect Calculation … | ExamDuo
Photoelectric Effect
Hard
Work Function Photoelectric Effect Calculation
The surface of a metal is illuminated alternately with photons of energies E1=4eV and E2=2.5eV respectively. The ratio of maximum speeds of the photoelectrons emitted in the two cases is 2. The work function of the metal in(eV) is ______.