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JAMB Physics 1990 Question 30

Question 30

Dispersion of Light and Colours

When light is incident on an object which is magenta in colour, which of the following colours would be absorbed?

  1. A.Red and blue
  2. B.Green only
  3. C.Red and green
  4. D.Red only
Show the answer and explanation

Answer: B (Green only)

Explanation

Magenta is red + blue, so a magenta object reflects red and blue and absorbs green.