Question

The beautiful natural phenomenon of the rainbow is a combination of which of the following different phenomena?

• A. Refraction, reflection
• B. Dispersion, refraction
• C. Refraction, dispersion, reflection
• D. Reflection, dispersion

Answer 1

The correct option is C Refraction, dispersion, reflection

Rainbows are caused by water droplets that disperse the white light from the sun into its constituent colours. When the white light falls on the water droplets, light undergoes refraction, dispersion and total internal reflection (or reflection). Hence, all these three phenomena take place during the formation of a rainbow.

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Hence, $\left(C\right)$ is the correct answer.

Why this question ? Key concept : Reflection, refraction and dispersion all three phenomena take place during the formation of a rainbow.