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25-01-2024
Physics

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Photons of energy 3.2 eV are incident on a photosensitive surface. It the stopping Potential for the emitted electrons is 1.5 V, the work function for the surface is:

A. 1.5 eV
B. 1.7 eV
C. 3.2eV
D. 4.7eV

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