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MHT CET202521 Apr 2025Evening ShiftPhysicsWave OpticsActual

According to Huygen's wave theory of light, which one of the following statements is not correct?

Options

  1. ADifferent colours of light are due to different wavelengths of waves.
  2. BDifferent colours of light are due to different sizes of the corpuscles.
  3. CSpeed of light in denser medium is less than that in rarer medium.
  4. DIt can explain laws of reflection and refraction.

Correct answer

B. Different colours of light are due to different sizes of the corpuscles.

Step-by-step solution

Huygen's wave theory postulates that light propagates as waves rather than particles. Statement B is inconsistent with this theory as it attributes color differences to "sizes of corpuscles," a concept from Newton's corpuscular theory rather than wave theory. Statement A aligns with wave theory, as different wavelengths correspond to different colors of light. Statement C is a key prediction of Huygen's theory: light travels slower in denser media than in rarer media. Statement D reflects the theory's success in de

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