In photoelectric emission process from a metal of work function 1.8 eV, the kinetic energy of most energetic electrons is 0.5 eV. The corresponding stopping potential is
As we discussed in concept
Stopping Potential /Cut-off Potential -
It is defined as the potential necessary to stop any electron from reaching the other side.
Stopping potential is amount of voltage needed to stop maximum energy electron.
Here maximum Kinetic energy = 0.5 eV
Stopping potential = 0.5 V
This option is incorrect.
This option is correct.
Create Your Account