The work function of a metal is

The work function of a metal surface is 4.2 eV. The maximum wavelength which can eject electrons from this metal surface is

The work function of metal A is higher than the work function of metal B. which of these metals has higher threshold wavelength?

The work function for a metal is 4eV. To emit a photoelectron of zero velocity from the surface of the metal, the wavelength of incident light should be :

The work function for a metal is 4eV. To emit a photoelectron of zero velocity from the surface of the metal, the wavelength of incident light should be :

The work function for a metal is 4eV. To emit a photoelectron of zero velocity from the surface of the metal, the wavelength of incident light should be :

The work function for a metal surface is 2.0 eV. Determine the longest wavelength that will eject photoelectrons from the metal surface.

Work function of metal is

Work function of metal is

Define work function of a metal. Give its unit.