When photons of energy h v falls on a photosensitive metal surface (work function h v _ g…
Physics · NEET · NTA Exams — Dual Nature of Matter and Radiation
When photons of energy h\(v\) falls on a photosensitive metal surface (work function h\(\mathrm{v}_{\mathrm{g}}\)) electrons are emitted from the surface with finite K.E. It is possible to say that
- all ejected electrons have the same K.E. equal to \(h v-h v_{a}\)
- the ejected electrons have a distribution of kinetic energy, the most energetic ones having K.E. equal to \(h v-h v_{a}\)
- the most energetic ejected electrons have K.E.= h\(v\)
- the kinetic energy of ejected electrons is h\(\mathrm{v}_{\mathrm{g}}\)
Answer
(B) the ejected electrons have a distribution of kinetic energy, the most energetic ones having K.E. equal to h v-h v_ a
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