2.3.62 - Photoelectric effect evidence

Understand how the photoelectric effect provides evidence for the particle nature of electromagnetic radiation.

Use - photoelectric effect evidence to connect the rule to the data and decision in the question.

This matters because - photoelectric effect evidence determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - photoelectric effect evidence to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Photoelectric effect evidence is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.