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`.

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)

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 potassium and caesium is 2.25 eV and 2.14 eV, respectively. Will the photoelectric effect occur for either of these elements, With incident light of wavelength 5650overset@ A

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

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

The work function for caesium atom is 1.9eV. Calculate the threshold wavlength

The work function for the following metals is given Na: 2.75 eV, K:2.30 eV , Mo: 4.17 eV , Ni: 515 eV. Which of these metals will not give photoelectric emission for a radiation of wavelength 3300 A from a He-Cd laser placed 1m away from the photocell? What happens if the laser is brought nearer and placed 50 cm away?

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 ?