The photoelectric work function for a metal surface is `4.125 eV`. The cut - off wavelength for this surface is

The photoelectric work function for a metal surface is 4.125eV. The cut -off wavelength for this surface is

The photoelectric work function for a metal surface is 2.4eV.If a light of wavelength 5000Ais incident on the surface of the metal, find the threshold frequency and incident frequency. Will there be emission of photoelectrons or not?

Photoelectric work function for a surface is 2.4 eV. Light of wavelength 6.8 xx 10^(-7) m shines on the surface. Find the frequency of incident light and also the threshold frequency. Will there be photoelectric emission or not ?

The work function of a metal surface is 2.0 eV. Light of wavelength 5000 Å is incident on it:

The work function for aluminium is 4.125 eV. The cut off wavelength for photoelectric effect for aluminium is

The work function of aluminium is 4.125eV. The cut off wavelength for photoelectric effect for aluminium is