Physics 9702: QUANTUM PHYSICS Topical Past Paper Questions
Cambridge AS & A Level Physics (9702) past-paper questions on QUANTUM PHYSICS, free. This topic is frequently examined across 23 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
(a) When a clean metal surface is illuminated by electromagnetic radiation, electrons may be emitted from the surface. (i) State the name of this phenomenon. [1] (ii) State what is meant by the threshold frequency of the metal. [1] (iii) Explain why the existence of the threshold…
(a) State what is meant by the photoelectric effect. [2] (b) The photoelectric effect is investigated using two clean metal plates. One plate is made from metal X and the other is made from metal Y. Metal X has work function energy $ \Phi $. Metal Y has work function energy $ 2\P…
A polished sheet of magnesium in a vacuum emits electrons when it is illuminated by ultraviolet radiation. (a) State the name of this phenomenon. [1] (b) For emission of electrons to occur, the frequency of the ultraviolet radiation must be at least $ 8.8 \times 10^{14} $ Hz. (i)…
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