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Physics · May / June 2025 · Paper 12 · Question 24

5054Dispersion of light

Which statement about red light and violet light is correct?

  1. AA prism deviates red light more than it deviates violet light.
  2. BRed light has a lower frequency than violet light.
  3. CRed light has a shorter wavelength than violet light.
  4. DThe speed of red light in a vacuum is less than the speed of violet light in a vacuum.

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Correct answer: B. Red light has a lower frequency than violet light.

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