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  • General Science: Light, Vision, and Chemistry
  • Which of the following colours of light is deviate the le...
Multiple choice

Which of the following colours of light is deviate the least while passing through a prism?

  1. Red

  2. Violet

  3. Blue

  4. Pink

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A Correct answer
Explanation

According to Cauchy's dispersion formula, the refractive index is higher for shorter wavelengths. Red light has the longest wavelength in the visible spectrum, so it deviates the least.

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