Three photo diods `D_1`, `D_2` and `D_3` are made of semiconductors having band gaps of` 2.5 eV, 2eV and 3eV,` respectively. Which ones will able to detect light of wave length `6000 overset @(A)`?

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

A p -n photodiode is fabricated from a semiconductor with band gap of 2.8 eV . Can it detect a wavelength of 6000nm ?

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 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

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 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 .

in the foll. Circuit of PN junction , diodes D_1, D_2 and D_3 are ideal then I is

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 ?

Determine the wavelength and frequency of a photon having energy of 3.2 eV