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JAMB Physics 2013 Question 35

Question 35

Dispersion of Light and Colours

The angle of deviation of light of various colours passing through a triangular prism increases in the order

  1. A.red → green → blue.
  2. B.green → violet → blue.
  3. C.blue → red → green.
  4. D.blue → green → red.
Show the answer and explanation

Answer: A (red → green → blue.)

Explanation

Red is deviated least and violet most, so the deviation increases from red to green to blue.