A surface is irradiated with ultraviolet radiation of wavelength `0.2 mum`. If the maximum velocity of electron liberated from the surface is `8.8 xx 10^(5)m//s`, then find the work function of the surface.

Irradiating the metal surface successive by radiations of wavelength 3000Å and 5400Å , it is found that the maximum velocites of electrons are in the ratio 2:1 . Find the work function of the metal surface, meV.

The threshold wavelength for emission of photoelectrons from a metal surface is 6 xx 10^(-7) m. What is the work function of the material of the metal surface ?

The threshold wavelength for emission of photoelectrons from a metal surface is 6xx10^(-7) m. What is the work function of the material of the metal surface ?

If a surface has a work function 4.0 eV, what is the maximum velocity of electrons liberated from the surface when it is irradiated with ultraviolet radiation of wavelength 0.2 mum ?

If a surface has a work function 4.0 eV, what is the maximum velocity of electrons liberated from the surface when it is irradiated with ultraviolet radiation of wavelength 0.2 mum ?

Ultraviolet beam of wavelength 280 nm is incident on lithium surface of work function 2.5 eV. The maximum velocity of electron emitted from metal surface is

The threshold wavelength for emission of photoelectrons from a metal surface is 6xx10^(-7)m .The work function of the material of the metal surface is.

A metallic surface is irradiated with light energy E , of wave length lamda giving out electrons with maximum velocity 2m/s . The threshold wavelength of the metal surface is 3lamda The same surface would release electrons with maximum velocity of 4m/s if irradiated by light of wavelength (nm) (m is mass of electrons)