JAMB Physics 2020 Objective — Question 18
Question 18 of 40 from the Joint Admissions and Matriculation Board (JAMB) Physics 2020 Objective paper, with the correct answer and a full explanation.
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18. Which of the following combinations will not produce white light after mixing?
- A. A. Blue & magentaCorrect
- B. B. Red, green & blue
- C. C. Yellow & blue
- D. D. Red & cyan
Explanation
Red+cyan, blue+yellow, and green+magenta are complementary colour pairs that produce white light when mixed, as does red+green+blue. Blue & magenta is not a standard complementary pair that produces white.
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