Physics 0625 · IGCSE · Light

Light — practice question

A light beam is monochromatic. What is meant by monochromatic?

  • AAll the waves in the beam must have the same frequency only.
  • BAll the waves in the beam must have the same amplitude only.
  • CAll the waves in the beam must have the same speed only.
  • DAll the waves in the beam must have the same amplitude, frequency and speed.

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