Multiple choice general knowledge science & technology

Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this? I. Diffusion II. Refraction III. Internal reflection

  1. I, II & III

  2. I & II

  3. II & III

  4. I & III
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Rainbow formation requires three optical processes: refraction when sunlight enters the water droplet, internal reflection off the droplet's back surface, and refraction again when exiting. Dispersion during refraction separates white light into colors.

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