In the photoelectric effect, what does the work function represent?
Correct Answer: The work function is the minimum energy required to remove an electron from the surface of the metal.
- Step 1: Understand that the photoelectric effect involves light hitting a metal surface.
- Step 2: Know that when light hits the metal, it can cause electrons to be released.
- Step 3: Realize that not just any amount of energy can remove an electron; there is a minimum amount needed.
- Step 4: This minimum energy is called the 'work function'.
- Step 5: The work function is specific to each type of metal.
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