How a Rainbow Is Made Explanation and Solution Guide

Begin by reviewing the fundamental processes involved: A rainbow forms when light is refracted and dispersed through water droplets in the atmosphere. Understanding this sequence is key to recognizing the interplay of light and water that produces the colorful arc.

Examine each step closely: First, light enters the droplet and slows down as it passes from air to water, causing refraction. As the light bends, it splits into its constituent colors. Next, internal reflection occurs, and the light exits the droplet, forming a visible spectrum in the sky.

Pay attention to specific conditions: A rainbow can only be seen when the light source is behind the observer, and water droplets are in front. This is why rain showers often lead to rainbow sightings, as the sunlight interacts with the water in the air.