Physics - Modern Physics Question with Solution | TestHub

Maximum velocity of the photoelectron emitted by a metal is $1.8\times 10^6\mathrm{m}{\mathrm{s}}^{-1}$. Take the value of specific charge of the electron is $1.8\times 10^{11}\mathrm{C}{\mathrm{kg}}^{-1}$. Then the stopping potential in volt is