State Huygens' principle. What is the fundamental principle on which it is based?

  • A
    Huygens' principle states that every point on a wavefront is a source of secondary wavelets.
  • B
    It is based on the principle of superposition of waves.
  • C
    It is based on the conservation of energy.
  • D
    It is based on the principle of rectilinear propagation of light.

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