The energy required to remove electron from sodium is 2.3 eV. Does sodium show photoelectric effect for orange light of wavelength `6800 overset(@)(A)`?

The energy required to remove electron from sodiumis2.3eV.Does sodium show photoelectric effect for orange light of wavelength 6800overset@ A ?

Which colour of visible light does not show photoelectric effect?

The work functions for potassium and caesium are 2.25 eV and 2.14 eV respectively. Will the photoelectric effect occur for either of these elements with light of wavelength 5180 overset(@)(A)

Calculate the energy of a photon, in joule and eV, in a light of wavelength 5000 overset@A .

When a metal surface is illuminated by a monochromatic light of wave-length lambda , then the potential difference required to stop the ejection of electrons is 3V . When the same surface is illuminated by the light of wavelength 2lambda , then the potential difference required to stop the ejection of electrons is V . Then for photoelectric effect, the threshold wavelength for the metal surface will be

Threshold frequency for photoelectric effect on sodium corresponds to wavelength 5000 overset@A Its work function is

The work functions for potassium and caesium are 2.25 eV and 2.14 eV respectively. Will the photoelectric effect occur for either of these elements with incident light of wavelength 5650 overset(@)(A) .

The work function for potassium and caesium is 2.25 eV and 2.14 eV, respectively: with light of wavelength 5180overset@ A?

The work function for sodium and copper are 2.0 eV and 4.0 eV respectively. Find by calculation which of the two will be used for the photoelectric cell to work with light of wavelength 4000overset@A .

Calculate the work function in electron volt for indium metal, given that photoelectric threshold wavelength is 6800overset@A .