In photoelectric emission process from a metal of work function 1.8eV, the kinetic energy of moste energetic electrons is 0.5 eV. The corresponding stopping potential is_________
A. 1.8 V
B. 1.3V
C. 0.5V
D. 2.3V
Answer:C
In photoelectric emission process from a metal of work function 1.8eV, the kinetic energy of moste energetic electrons is 0.5 eV. The corresponding stopping potential is_________
A. 1.8 V B. 1.3V C. 0.5V D. 2.3V