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JAMB Physics 2002 Question 17

Question 17

Waves

The colours seen in soap bubbles are due to

  1. A.interference
  2. B.dispersion
  3. C.diffraction
  4. D.refraction.
Show the answer and explanation

Answer: A (interference)

Explanation

Light reflected from the front and back surfaces of the thin soap film interferes; different thicknesses reinforce different colours.