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JAMB Physics 1984 Question 40

Question 40

Dispersion of Light and Colours

What is the apparent colour of a RED SHIRT when viewed in PURE green light?

  1. A.Red
  2. B.Green
  3. C.Yellow
  4. D.Black
  5. E.Blue
Show the answer and explanation

Answer: D (Black)

Explanation

A red shirt reflects only red light. Under pure green light there is no red to reflect, so it absorbs everything and looks black.