If threshold wavelength ( λ °) for ejection of electron fro…

Chemistry Structure of Atom Uncertainty Principle and Schrodinger Wave Equation Single Correct MCQ

Published on: August 13, 2026

If threshold wavelength ( λ °) for ejection of electron from metal is 330 nm, then work function for the photoelectric emission is - (Planck's constant

6 × 10 –10 J

1.2 × 10 –18 J

3 × 10 –19 J

6 × 10 –19 J

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The correct answer is:

From the Einstein photoelectric effect, work function is the minimum energy required to remove an electron from the metal surface.

Work function Threshold energy

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