The work function for a metal whose threshold wavelength is 5000 `Å` is

Calculate the photoelectric work function of a metal whose threshold wavelength is 5200 Å.

The work function of a metal is 4.2 eV , its threshold wavelength will be

The work function of a metal is 4.2 eV , its threshold wavelength will be

The work function of a metal is 4.2 eV , its threshold wavelength will be

The work function for cesium is 1.8 eV. A light of wavelength 5000 Å is incident on it. Calculate (i) maximum kinetic energy of emitted electrons, (ii) threshold frequency and threshold wavelength and (iii) maximum velocity of the emitted electrons

The work function of a metal is 3eV. Calculate its threshold wavelength.