MDCAT Physics MCQ #2531

What is the minimum energy required to eject an electron from a metal surface in the photoelectric effect?

MDCAT Physics MCQ #2531

  1. Question 1

    Q1. What is the minimum energy required to eject an electron from a metal surface in the photoelectric effect?

    • A) Work function
    • B) Threshold energy
    • C) Ionization energy
    • D) Binding energy

    Answer: Work function

    Explanation: Work function is the minimum energy required; it is a characteristic of the metal, not the incident light.