Photons of energy 3.2 eV are incident on a photosensitive surface. If the stopping…
Physics · Class 12 · CBSE — Dual Nature of Radiation & Matter
Photons of energy 3.2 eV are incident on a photosensitive surface. If the stopping potential for the emitted electrons is 1.5 V, the work function for the surface is:
- 1.5 eV
- 1.7 eV
- 3.2 eV
- 4.7 eV
Answer
(B) 1.7 eV
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