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CSE · Paper II · Quantum Mechanicscse-1986-subject-05-002

Photoelectric effect — UPSC Physics Optional CSE 1986 Paper II

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The stopping potential for electrons emitted from a metal, due to photoelectric effect, is found to be 1\text{ volt} for light of 2,500\text{ Angstrom units}. Calculate the work function of the metal in electron volts.

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