Question
Physics Question on Photoelectric Effect
The maximum kinetic energy of photoelectrons emitted from a surface when photons of energy 6 eV fall on it is 4 eV. The stopping potential in volt is
A
2
B
4
C
6
D
10
Answer
4
Explanation
Solution
Stopping potential is the negative potential applied to stop the electrons having maximum kinetic energy. Therefore, stopping potential will be 4 V.