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Component 3 Light, Nuclei and Options
Quick questions on Photons and the photoelectric effect: E = hf, Einstein's equation and the work function - Eduqas A-Level Physics
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
State the equation for the energy of a photon. [1 mark]
What is q2?Show answer
A photon has frequency . Find its energy (). [2 marks]
What is q3?Show answer
Explain why no electrons are emitted below the threshold frequency, however intense the light. [2 marks]
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