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JAMB Physics 2009 Question 26

Question 26

Waves

The wave phenomenon demonstrated in the diagram above is

Diagram for this question
  1. A.reflection.
  2. B.deflection.
  3. C.diffraction.
  4. D.refraction.
Show the answer and explanation

Answer: C (diffraction.)

Explanation

Straight waves pass through a narrow slit and spread out as curved waves on the other side. Spreading through a gap is diffraction.