Work function of Sodium is 2.75eV. What will be KE of emitted electron when photon of energy 3.54eV is incident on the surface of sodium?

Find frequency of a photon of energy 3.3 eV?

A photon of energy 3.3 eV , find the momentum of photon is

What is the wavelength of a photon of energy 1 eV?

The work function of tungsten is 4.50 eV . The wavelength of fastest electron emitted when light whose photon energy is 5.50 eV falls on tungsten surface, is

A metal plate of area 1 xx 10^(-4) m^(2) is illuminated by a radiation of intensity 16m W//m^(2) . The work function of the metal is 5eV. The energy of the incident photons is 10eV. The energy of the incident photons is 10eV and 10% of it produces photo electrons. The number of emitted photo electrons per second their maximum energy, respectively, will be : [1 eV = 1.6 xx 10^(-19)J]

Photons with energy 5 eV are incident on a cathode C in a photoelectric cell . The maximum energy of emitted photoelectrons is 2 eV . When photons of energy 6 eV are incident on C , no photoelectrons will reach the anode A , if the stopping potential of A relative to C is

A : Work function of aluminium is 4.2 eV . Emission of electrons will be possible by two photons , each of 2.5 eV energy , striking the electron of aluminium . R : Energy of a photon can be less then the work function of the metal , for photoelectron emission .

A photon of wavelenth 3000 A strikes a metal surface, the work function of the metal being 2.20eV . Calculate (i) the energy of the photon in eV(ii) the kinetic energy of the emitted photo electron and (iii) the velocity of the photo electron.

The work function for a metal is 40 eV . To emit photo electrons of zero velocity from the surface of the metal the wavelength of incident light should be x nm .

The work function of a material is 5.3 eV and the stopping potential for a radiation incident on this surface is 4.2V. The energy of a quantum of incident radiation is