White light $($ranging in wavelengths from $380$ to $750$ nm $)$ is incident on a metal with work function $W_0=2\mathrm{.}38$ eV $.$

What is the maximum kinetic energy of the electrons emitted from the surface? $K{E}_{\text{m}\text{a}\text{x}}=q,$ eV

For what range of wavelengths $($from ${}_{\text{m}\text{i}\text{n}}$ to ${}_{\text{m}\text{a}\text{x}})$ will NO electrons be emitted? ${}_{\text{m}\text{i}\text{n}}=$ nm

${}_{\text{m}\text{a}\text{x}}={}^6,nm$