The threshold wavelength for photoelectric effect on sodium is 5000 Å. Its work function…

Chemistry · JEE Main · NTA Exams — Atomic Structure

1. 4 × 10^–19 J
2. 1J
3. 2 × 10^–19J
4. 3 × 10^–10 J

Answer

(A) 4 × 10 –19 J

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