What causes a rainbow?

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What causes a rainbow? Answer: Refraction, reflection, and dispersion of sunlight in water droplets

A rainbow is a meteorological phenomenon caused by reflection, refraction, and dispersion of light in water droplets.

Question context

This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.