WAEC Physics 2021 Theory — Question 21
Question 21 of 35 from the West African Examinations Council (WAEC) Physics 2021 Theory paper, with the correct answer and a full explanation.
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10(b). (i) Name the primary colours of light. (ii) Match each primary colour to its corresponding complementary colour.
Model answer
(i) Red, Blue, Green. (ii) Red ↔ Cyan; Blue ↔ Yellow; Green ↔ Magenta (each pair combines to give white light).
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