The potential difference that must be applied to stop the fastest photoelectrons emitted by a nickel surface, having work function 5.01 eV, when ultraviolet light of 200 nm falls on it, must be:
As we discussed in concept
Conservation of energy -
Stopping Potential /Cut-off Potential -
It is defined as the potential necessary to stop any electron from reaching the other side.
This option is incorrect.
This option is correct.
Create Your Account