307401 A light source of wavelength \({\rm{\lambda }}\) illuminates a metal and eject photoelectrons with \({\left( {K.E.} \right)_{\max }} = 1\,eV\). Another light source of wavelength \({\rm{\lambda /3}}\) ejects photoelectrons from same metal with \({\left( {K.E.} \right)_{\max }} = 4\,eV\). Find the value of work function?
307401 A light source of wavelength \({\rm{\lambda }}\) illuminates a metal and eject photoelectrons with \({\left( {K.E.} \right)_{\max }} = 1\,eV\). Another light source of wavelength \({\rm{\lambda /3}}\) ejects photoelectrons from same metal with \({\left( {K.E.} \right)_{\max }} = 4\,eV\). Find the value of work function?
307401 A light source of wavelength \({\rm{\lambda }}\) illuminates a metal and eject photoelectrons with \({\left( {K.E.} \right)_{\max }} = 1\,eV\). Another light source of wavelength \({\rm{\lambda /3}}\) ejects photoelectrons from same metal with \({\left( {K.E.} \right)_{\max }} = 4\,eV\). Find the value of work function?
307401 A light source of wavelength \({\rm{\lambda }}\) illuminates a metal and eject photoelectrons with \({\left( {K.E.} \right)_{\max }} = 1\,eV\). Another light source of wavelength \({\rm{\lambda /3}}\) ejects photoelectrons from same metal with \({\left( {K.E.} \right)_{\max }} = 4\,eV\). Find the value of work function?