Physics 0625 · IGCSE · Light

Light — practice question

The diagram shows a beam of white light travelling through a triangular prism. A spectrum is formed. Which row correctly identifies a wave property involved in creating the colours at X and Y?

  • Adiffraction; X: red; Y: violet
  • Bdispersion; X: red; Y: violet
  • Creflection; X: violet; Y: red
  • Drefraction; X: violet; Y: red

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