WAEC Physics 2013 Theory — Question 9
Question 9 of 15 from the West African Examinations Council (WAEC) Physics 2013 Theory paper, with the correct answer and a full explanation.
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9. Name the three basic components P, Q and R that make up the cathode ray tube, as illustrated in the diagram above.
Model answer
P = electron gun (produces and accelerates the beam of electrons); Q = deflecting plates (deflect the electron beam vertically/horizontally); R = screen (fluorescent screen where the electron beam produces a visible spot of light).
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