A light of energy 5eV falls on a metal and the ... - JAMB Physics 1995 Question
A light of energy 5eV falls on a metal and the electrons with a maximum kinetic energy of 2eV are ejected. The work function of the metal is
A
0.4eV
B
2.5eV
C
3.0eV
D
7.0eV
correct option: c
Work function = 5 - 2
= 3eV
= 3eV
Please share this, thanks:
Add your answer
No responses