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RRB Junior Engineer / DMS / CMA 2019 · Question 119 of 3719

Which of the following colour of white light has the maximum wavelength?

Physics - Optics

  1. Aa. Green
  2. Bb. RedCorrect
  3. Cc. Violet
  4. Dd. Orange

Answer: B. b. Red

Explanation

In the spectrum of visible light, the color red has the maximum wavelength. Among the colors of white light, red light typically ranges from approximately 620 to 750 nanometers (nm) in wavelength, making it the longest wavelength of visible light.

Source: RRB JE 2019 CBT-1 (24-May-2019 Shift-1) — ixambee compilation with answer key and solutions · reliable-secondary

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