Physics - Modern Physics Question with Solution | TestHub

The electric field associated with a light wave is$\mathrm{E}={\mathrm{E}}_0\sin \left[1.57\times {10}^7\left(\mathrm{x}-\mathrm{ct}\right)\right]$where$\mathrm{x}$is in metre and$\mathrm{t}$is in second. If this light is used to produce photoelectric emission from the surface of a metal of work function$\text{1.9} \mathrm{eV}$, then the stopping potential will be