Physics - Modern Physics Question with Solution | TestHub

The maximum kinetic energy of the ejected electrons is related to the stopping potential by the equation:

$K_{\text{max}}=e{V}_0$

Given $V_0=10\text{ V}$ and $e=1.6\times 10^{-19}\text{ C}$, substituting these values:

$K_{\text{max}}=(1.6\times 10^{-19}\text{ C})\times 10\text{ V}$

$K_{\text{max}}=1.6\times 10^{-18}\text{ J}$

Answer: $1.6\times 10^{-18}\mathrm{J}$