Physics WPH11: Waves and Particle Nature of Light Topical Past Paper Questions
Edexcel A Level Physics (WPH11) past-paper questions on Waves and Particle Nature of Light, free. This topic is frequently examined across 14 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
A camera detects light using a charge-coupled device (CCD). One CCD has an array of metal pixels, as shown. The pixels release electrons when exposed to ultraviolet (UV) light. The pixels are exposed to UV light of wavelength 380nm. (a) (i) Show that the energy of a photon of thi…
Some types of glue can be hardened by exposure to ultraviolet (UV) light. (a) One type of UV lamp contains mercury atoms in an evacuated glass tube. When a large potential difference is applied between two electrodes in the tube, electrons move between the two electrodes. These e…
The star $ \varepsilon $-Eridani is one of the closest stars to the Sun. The intensity of $ \varepsilon $-Eridani, as measured on the Earth, is $ 1.05 \times 10^{-9} \, W m^{-2} $. (a) Calculate the wavelength, $ \lambda_{max} $, corresponding to the peak intensity of emission of…
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