The surface of a metal is illuminated wi...

The surface of a metal is illuminated with the light of 400 nm wavelength. The kinetic energy of the ejected photoelectron is found to be 1.69 eV. The work function of the metal is

1.41 eV

1.51 eV

1.68 eV

3.09 eV

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Wave property of electrons implies that they will show diffraction effects. Davission and Germer demonstrated this by diffracting electrons from crystals. The law governing the diffraction from a crystal is obtained by requiring that electron waves reflected from the planes of atoms in a crystal interfere constructively (see figure) The surface of a metal is illuminated with the light of 400 nm . The kinetic energy of the ejected photoelectrons was found to be 1.68 eV . The work function of the metal is : ( hc = 1240 eV-nm )

The surface of a metal illuminated with the light of 400 nm . The kinetic energy of the ejected photoelectrons was found to be 1.68 eV . The work function of the metal is : (hc=1240 eV.nm)

The surface of a metal is illuminated with light of wavelength 400 nm. The kinetic energy of the ejected photoelectrons was found to be 1.68 eV. What is the work function of the metal ? [ hC=1240 eV*nm ]

The surface of a metal is illuminted with the light of 400 nm The kinetic energy of the ejection photoelectron was found to be 1.68 eV The work function of the metal is :

A light of wavelength 600 nm is incident on a metal surface. When light of wavelength 400 nm is incident, the maximum kinetic energy of the emitted photoelectrons is doubled. The work function of the metals is

The work function of a metal is 3.4 eV. A light of wavelength 3000Å is incident on it. The maximum kinetic energy of the ejected electron will be :

A photon iof light with lambda = 470nm falls on a metal surface .As a result photoelectron are ejected with a velocity of 6.4 xx 10^(4) ms^(-1) .Find a. The kinetic energy of emited photonelectron b. The work function (in eV) of the metal surface

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