Question

Rainbow is formed due to.............

• A. refraction
• B. dispersion and total internal reflection
• C. total internal reflection
• D. scattering

Answer 1

Answer: (B)

dispersion and total internal reflection

Answer 2

The rainbow is an example of the dispersion of sunlight by the water droplets in the atmosphere. A Rainbowis a beautiful phenomenon that occurs due to a combination of the refraction of sunlightby spherical droplets of water and of internal (not total) reflection.

• The dispersion of light is the splitting of light into its constituent colors.
• Total internal reflection is when the ray of light travels in a denser medium towards the rare medium and gets reflected back inside the initial medium.

As the light shows Total internal reflection and dispersion by splitting into the colors in the rainbow. Therefore, option B is the correct answer.