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AQA Physics A-Level Paper 1
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27

May 2025

2024/2025

A+
(Semiconductor) diode - correct answerA semiconductor device with two terminals that allows current to pass only in one direction. Diodes work above a minimum voltage Absorbing photons - correct answerWhen an electron absorbs a photon, if the energy is equal to the energy difference between the energy levels, the electron is excited Absorption - correct answerWhen energy from a signal is absorbed by the optical fibre in which it travels Absorption spectrum - correct answerA spectrum of ...
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