Test your understanding of the photoelectric effect, photons, Einstein's equation, matter waves and the de Broglie relation with targeted questions and answers.
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These practice questions check understanding of the photoelectric effect, photons, Einstein's equation, matter waves and the de Broglie relation. The set is intended to test concept recognition, formula selection, numerical application and interpretation rather than simple memorisation. Attempt every question without looking at the answer, mark uncertain steps, and review the related concept before trying again. This approach helps identify weak areas early and makes revision more focused. The questions can be used after completing the chapter, before a class test, or as a quick self-check during examination preparation.