Physics A H156: Quantum physics Topical Past Paper Questions
OCR AS Physics A (H156) past-paper questions on Quantum physics, free. This topic is frequently examined across 5 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
$ ^{*} $ In 1929, the Nobel prize was awarded to Louis de Broglie for his discovery of the wave nature of electrons. Describe, with the aid of a suitable diagram: how an experiment can be safely conducted to demonstrate the wave nature of electrons • how the observations indicate…
Electromagnetic radiation is incident on a metal plate. Photoelectrons are emitted. (a) (i) State why electrons are emitted. [1] (ii) The metal plate has a threshold frequency of 990 THz. State what is meant by the term threshold frequency. [1] (b) The maximum kinetic energy of t…
An exploding star in a distant galaxy emitted a burst of electromagnetic radiation. X-rays and ultraviolet radiation from this burst were detected simultaneously at the Earth. The wavelength of the X-rays was $ 2.5 \times 10^{-11} $ m. (a) State why the X-rays and ultraviolet rad…
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