Correct Answer:
C. Dispersion
Correct answer: Dispersion. A rainbow forms when sunlight is refracted, reflected, and dispersed (split into colours) by raindrops.
Background: Dispersion splits white light into its seven colours.
- Refraction: Refraction is one step of the process.
- Reflection: Reflection is one step of the process.
- None of these: “None of these” is incorrect because dispersion is correct.
Did you know? The colours are remembered as VIBGYOR.
Memory trick: Rainbow = dispersion of light.