Question

The formation of rainbow is an example of _____________of light

• A. Dispersion
• B. Refraction
• C. Reflection
• D. Transmission

Answer 1

Answer: (A)

1. When a light ray passes from one medium to another, it deviates from its path. This phenomenon is called the refraction of light.
2. When sunlight passes through a prism, it splits into its seven constituent colours of light, this phenomenon is called the dispersion of light.
3. A Rainbow is formed when sunlight falls on water droplets.
4. In the formation of a rainbow, refraction, dispersion and total internal reflection are involved.
5. ​Generally, in the formation of the rainbow, water droplets work as a prism and due to the dispersion of light through water droplets, the rainbow is formed.

Thus,

Option B) Dispersion is the correct option.